Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Transportation & Automotive
Class Information
Number: 44
Name: Fuel and related compositions >
Description: This class includes most patents for:










Class Number Class Name No. of Patents
44/608

"low-rank" coal (e.g., lignite, etc.)

99
44/629

Apparatus for making or treating fuel composition

121
44/634

Briquetting

30
44/635

Plural operations

29
44/636

With molding

45
44/639

Liquid

36
44/630

Peat

7
44/633

Disintegrating

3
44/631

Plural operations

3
44/632

With molding

5
44/541

Bundled, covered or wrapped

57
44/275

Candle composition

177
44/607

Carbonized component (e.g., coke, etc.)

91
44/620

Coal treating process or product thereof

246
44/621

Removal of undesirable

123
44/627

Ash or ash-former

144
44/622

Sulfur

117
44/623

Using a transition metal-containing material

42
44/624

Using liquid aqueous material

113
44/625

And treatment with gas

48
44/626

Water (e.g., drying, etc.)

156
44/542

Coated or impregnated for easier ignition

37
44/543

Solid fiber or particle in coating (e.g., sawdust, etc.)

17
44/545

With normally-liquid material

17
44/544

With wax

39
44/506

Combined with friction igniting mass or surface

7
44/507

Hand manipulable (e.g., match, etc.)

23
44/508

Plural integral (e.g., string, etc.)

3
44/509

Parallel

3
44/510

With scratcher

9
44/550

Consolidated solids (e.g., briquette, etc.)

54
44/592

"low-rank" coal (e.g., lignite, etc.)

47
44/591

Carbonized material (e.g., coke, etc.)

73
44/593

Consolidation process using specified condition or technique

69
44/598

Baking or drying of formed product

42
44/595

Comminuting (e.g., grinding, etc.)

47
44/594

Predrying or moistening

46
44/596

Pressing

79
44/597

With applied heat

29
44/599

With chemical reaction (e.g., carbonizing.etc.)

53
44/551

Containing specified binder

43
44/564

Tar, pitch, or tar oil

20
44/568

Solid fuel, or solid fuel and water, are the only other components of the composition

31
44/566

With elemental metal, metal oxide, limestone, or inorganic metal salt (e.g., lime, etc.)

6
44/567

With fibrous vegetable material (e.g., cellulose, wood, paper, sawdust, etc.)

6
44/565

With nonfibrous carbohydrate (e.g., molasses, starch, etc.)

4
44/569

With bitumen or asphaltic material

28
44/570

With elemental metal, metal oxide, limestone, or inorganic metal salt (e.g., lime, etc.)

4
44/571

With paraffin, liquid hydrocarbon, or wax hydrocarbon

6
44/555

With glue or gelatin

4
44/559

With gypsum or silicon-containing material (e.g., clay, portland cement, water glass, etc.)

21
44/563

With fibrous vegetable material, resin, or organic -c(=o)- compound (e.g., rosin, tall oil, tallow, pine resin, etc.)

14
44/560

With nonfibrous carbohydrate (e.g., molasses, starch, etc.)

9
44/562

With paraffin, liquid hydrocarbon, or wax hydrocarbon

4
44/561

With pitch, tar, tar oil, or bitumen

5
44/578

With lignin, lignin derivative, or sulfite liquor (e.g., lignones, lignosulfonates, etc.)

23
44/580

With limestone, elemental metal, elemental sulfur, or inorganic compound (except water)

39
44/577

With nonfibrous carbohydrate (e.g., molasses, starch, etc.)

27
44/556

With nonproteinaceous organic nitrogen compound (e.g., hexamethylenetetramine, alkanolamine salts, etc.)

7
44/558

With oxidant (e.g., nitrates, chlorates, chromates, permanganates, black manganese oxide, etc.)

13
44/572

With paraffin, liquid hydrocarbon, or wax hydrocarbon

32
44/575

With elemental metal, metal oxide, limestone, or inorganic metal salt (e.g., lime, etc.)

5
44/576

With fibrous vegetable material (e.g., cellulose, wood, paper, sawdust, etc.)

26
44/574

With preliminary purification of coal (e.g., oil agglomerates of desulfurized or deashed coal, etc.)

37
44/573

With resin or organic -c(=o)o- compound (e.g., rosin, tall oil, tallow, pine resin, carboxylic acid esters, etc.)

4
44/557

With phosphorus- or boron-containing compound

12
44/579

With rubber, resin, or organic -c(=o)o- compound (e.g., rosin, tall oil, tallow, pine resin, carboxylic acids, etc.)

17
44/552

With sewage, animal blood, or animal manure

33
44/553

With synthetic organic polymer prepared by polymerizing specified monomer (e.g., polyacrylonitrile, urea-formaldehyde resins, etc.)

49
44/554

With vegetable flour, vegetable meal, or dairy product

6
44/589

Vegetation or refuse

136
44/590

Wood, sawdust or paper

108
44/642

Flame colorant composition

16
44/250

Flameless or glowless

18
44/251

Activatable by or containing water

20
44/252

Free metal-containing

15
44/253

With organic or second elemental material

15
44/605

From vegetation or refuse

298
44/606

Wood, sawdust or paper

125
44/901

Fuel combined with material to be heated

5
44/902

Flameless or glowless, e.g., hair curler, etc.

3
44/520

Fuel product having passageway for gas

25
44/521

Plural elements, with passageway unobstructed from side to opposite side

7
44/522

Single element having aperture

21
44/530

Fuel product of defined shape or structure

84
44/531

Composed of moveable (e.g., articulated, etc.) or readily-breakable sections

19
44/535

Cylindrical (e.g., log, etc.)

85
44/532

Shaped or arranged for easier ignition

55
44/533

And containing easier-igniting material

43
44/534

Material acts as at least part of a wrapper or packaging

29
44/300

Liquid fuels (excluding fuels that are exclusively mixtures of liquid hydrocarbons)

196
44/354

Aluminum or heavy metal, other than lead, containing

79
44/357

Inorganic compound of zr, cr, cu, zn, or ni

31
44/355

Inorganic metal carbonyl compound (e.g., iron carbonyl, etc.)

10
44/356

With organic -c(=o)o- containing compound (e.g., carboxylic acids, esters, etc.)

5
44/358

Organic compound containing the heavy metal or aluminum

76
44/361

Five-membered, unsaturated carbocycle bonded directly to the heavy metal or aluminum (e.g., ferrocene, etc.)

40
44/363

Heavy metal or aluminum carboxylate salt or complex

63
44/364

The heavy metal is cr, zr, or a lanthanide

37
44/362

Heavy metal or aluminum complex of compounds having two -c(=x)- groups, wherein x is chalcogen, bonded to the same carbon, or enols thereof (e.g., iron acetylacetonate, etc.)

28
44/366

Heavy metal or aluminum salt of organic phosphorus acid

23
44/365

Heavy metal or aluminum sulfonate salt or complex

25
44/359

Metal carbonyl compound (e.g., cyclopentadienyl manganese tricarbonyl, etc.)

48
44/360

Substituted or unsubstituted cyclopentadienyl manganese tricarbonyl, with an organic compound having -c(=o)o- not bonded to heavy metal or aluminum etc.)

29
44/367

Nitrogen bonded directly or indirectly to the heavy metal or aluminum

42
44/368

Organic compound containing arsenic, antimony, or bismuth

3
44/314

Boron containing

31
44/317

Nitrogen attached directly or indirectly to the boron

35
44/315

Phosphorus attached directly or indirectly to the boron

5
44/316

Three carbons or three fluorines bonded directly to the boron

5
44/318

Three identical or diverse chalcogens bonded directly to the boron

16
44/319

Carbon, chalcogen, and boron in the same ring

8
44/313

Carbohydrate containing

22
44/369

Containing -o-s(=o)(=o)o- or -o-s(=o)o- attached directly or indirectly to carbon by nonionic bonding (e.g., sulfate esters, sulfite esters, etc.)

12
44/323

Containing -x-n(=x) or -x-n(=x)(=x) bonded directly to carbon, wherein the x's are the same or diverse chalcogens (e.g., thionitrite esters, etc.)

11
44/324

Nitrates or thionitrates (i.e., -x-n(=o)(=o) bonded directly to carbon)

43
44/326

With organic non-nitrate chalcogen compound

38
44/325

With organic non-nitrate nitrogen compound

19
44/322

Containing acyclic oxygen single bonded to acyclic oxygen (i.e., peroxy compounds)

30
44/375

Containing compound having phosphorus bonded directly to chalcogen and directly or indirectly to carbon by nonionic bonding (e.g., alkyl acid phosphates, etc.)

18
44/378

Carbon bonded directly to the phosphorus

12
44/379

Chalcogen or halogen attached indirectly to the phosphorus by acyclic nonionic bonding

20
44/376

Nitrogen attached to the phosphorus directly or indirectly by acyclic nonionic bonding

10
44/377

Lecithin or indeterminate structure reaction product thereof

2
44/380

Organic nitrogen compound salt of organic phosphorus acids

11
44/381

Chalcogen or additional nitrogen in the organic nitrogen compound

8
44/382

Phosphorus triester

17
44/385

Containing organic -c(=o)o- compound (e.g., fatty acids, etc.)

164
44/386

Compound of indeterminate structure prepared by reacting an organic -c(=o)o- compound

123
44/405

Nitrogen attached indirectly to the -c(=o)o- group by acyclic nonionic bonding

27
44/406

The nitrogen is bonded directly to an additional -c(=o)- group

17
44/407

Plural nitrogens or plural chalcogens attached indirectly to the -c(=o)o- group by acyclic nonionic bonding

26
44/410

Nitrogen or chalcogen attached indirectly to the -c(=o)o- group by nonionic bonding

40
44/387

Nitrogen or oxygen bonded directly to the carbon of the -c(=o)o- group (e.g., carbamic and carbonic compounds, etc.)

95
44/408

Organic nitrogen compound salt of carboxylic acids

64
44/409

Plural nitrogens in the organic nitrogen compound (e.g., diamines, aminoamides, guanidines, etc.)

13
44/403

Plural -c(=o)o- groups attached to each other directly or indirectly by nonionic bonding

91
44/404

Carboxylic acid dimer, trimer, or homopolymer

27
44/388

The single bonded oxygen is bonded directly to an additional carbon, which carbon may be single bonded to any element but may be multiple bonded only to carbon (i.e., carboxylic acid esters)

189
44/401

Alkyl ester of formic or alkanoic acids

24
44/402

With alkanol or dialkyl ether

15
44/400

Chalcogen or halogen attached indirectly to the -c(=o)o- group by nonionic bonding

83
44/399

Nitrogen attached indirectly to the -c(=o)o- group by nonionic bonding

76
44/389

Plural -c(=o)o- groups attached to each other directly or indirectly by nonionic bonding (e.g., polyesters, half ester-half acid compounds, etc.)

131
44/393

Copolymer of olefinically unsaturated hydrocarbon monomer and additional monomer (e.g., ethylene-vinyl acetate copolymers, etc.)

138
44/396

One of the monomers contains a benzene ring (e.g., styrene, etc.)

14
44/395

With additional synthetic nonhydrocarbon polymer

46
44/394

With organic nitrogen compound

61
44/390

Halogen or sulfur attached indirectly to the -c(=o)o- by nonionic bonding

41
44/398

Mono- di-, or polyester of polycarboxylic acids

80
44/391

Nitrogen attached indirectly to the -c(=o)o- by nonionic bonding

70
44/392

Product polymerized through an olefinic double bond

27
44/397

Polymer or copolymer of nonhydrocarbon olefinically unsaturated monomers polymerized through an olefinic double bond (e.g., trimer esters, etc.)

59
44/411

With alkanol, ketone, or phenol

16
44/383

Containing organic -c(=x)x- compound, wherein the x's are the same or diverse chalcogens, with at least one x being sulfur

17
44/370

Containing organic -s(=o)(=o)o- compound (i.e., sulfonates)

51
44/372

Hydrazine or organic nitrogen compound salts of sulfonic acids

14
44/371

Nitrogen or -c(=x)-, wherein x is chalcogen, attached indirectly to the sulfonate group by nonionic bonding

17
44/373

Overbased sulfonate or carbonated alkaline earth metal sulfonate

21
44/374

With organic -c(=o)o- compound (e.g., carboxylic acids, esters, etc.)

7
44/301

Emulsion fuel (e.g., water-gasoline emulsions, etc.)

267
44/302

Alkanol component

153
44/321

Free metal or alloy containing

38
44/456

Halogen bonded directly to carbon

28
44/329

Heterocyclic carbon compound containing a hetero ring having chalcogen or nitrogen as the only ring hetero atoms

44
44/330

Compound of indeterminate structure prepared by reacting a heterocyclic compound of known structure

56
44/331

The heterocyclic compound reactant is a dicarboxylic acid anhydride (e.g., reaction product of succinic anhydride with a polyamine, etc.)

129
44/332

The heterocyclic compound reactant is an oxirane (e.g., reaction product of epihalohydrin with amine, epoxide reactions, etc.)

33
44/350

The hetero ring contains five members including carbon and chalcogen

34
44/351

Acyclic chalcogen bonded directly to ring carbon of the hetero ring (e.g., five-membered lactones, anhydrides, sorbitans, etc.)

57
44/352

Ring carbons of the hetero ring are unsubstituted or hydrocarbyl substituted only

27
44/340

The hetero ring contains five members including nitrogen and carbon (e.g., pyrrolidones, porphines, etc.)

64
44/347

Acyclic chalcogen bonded directly to each carbon adjacent to the ring nitrogen (e.g., succinimides, etc.)

126
44/348

Substituent on the ring nitrogen contains an acyclic -c(=x)- group, wherein x is chalcogen

40
44/341

Chalcogen in the hetero ring

58
44/342

Plural nitrogens in the hetero ring (e.g., imidazolines, etc.)

33
44/343

At least three nitrogens in the hetero ring (e.g., triazoles, tetrazoles, etc.)

31
44/345

Carboxylic acid salt of the hetero ring compound, or a free carboxylic acid is present

4
44/344

Having -c(=x)-, wherein x is chalcogen or nh, attached indirectly to the hetero ring by nonionic bonding

24
44/346

Polymeric or copolymeric compound having plural occurrences of the hetero ring (e.g., alpha-olefin maleimide copolymers, etc.)

44
44/349

The hetero ring contains six members including carbon and chalcogen (e.g., six-membered sorbitans, ketone peroxides, etc.)

34
44/333

The hetero ring contains six members including nitrogen and carbon

55
44/338

Acyclic chalcogen or acyclic nitrogen bonded directly to ring carbon of the hetero ring

24
44/334

Chalcogen in the hetero ring

62
44/335

Plural nitrogens in the hetero ring (e.g., piperazines, etc.)

71
44/336

Triazine or 1,3-diazine

38
44/337

Polymer or copolymer of a vinyl pyridine

17
44/339

The hetero ring is unsubstituted or hydrocarbyl substituted only, or salts thereof (e.g., pyridyl salicylate salts, isoquinoline, etc.)

15
44/353

The hetero ring contains three or four members

15
44/457

Inorganic component (e.g., carbon dioxide, etc.)

99
44/458

Nitrogen or sulfur containing (e.g., carbon disulfide, etc.)

25
44/454

Lead-containing organic compound

5
44/455

With inorganic additive

0
44/327

Organic azide compound, or organic compound having acyclic nitrogen double bonded to acyclic nitrogen (e.g., diazo compounds, etc.)

9
44/328

Azo compound (i.e., each of the nitrogens is single bonded to carbon)

35
44/384

Organic compound containing -nc or -cn group

55
44/304

Organic compound of indeterminate structure which is a reaction product of an organic compound with sulfur halide or elemental sulfur containing

20
44/412

Organic nitrogen compound containing

143
44/424

Benzene ring attached indirectly to the nitrogen by acyclic nonionic bonding

50
44/425

Additional nitrogen attached indirectly to the nitrogen by acyclic nonionic bonding

45
44/426

Benzene ring bonded directly to the nitrogen

44
44/427

Chalcogen attached directly or indirectly to the benzene ring by nonionic bonding

20
44/428

Acyclic carbon bonded directly to the nitrogen

16
44/430

Plural nitrogens bonded to the same benzene

13
44/431

Plural rings bonded to the same nitrogen atom

4
44/429

The benzene ring is part of a polycyclo ring system

8
44/420

Carbon double bonded to the nitrogen

23
44/421

Plural nitrogens attached indirectly to each other by acyclic nonionic bonding

23
44/434

Chalcogen or halogen attached indirectly to the nitrogen by acyclic nonionic bonding

98
44/423

Chalcogen or phosphorus attached directly to the nitrogen by nonionic bonding

27
44/415

Compound of indeterminate structure prepared by reacting a phenol, an aldehyde, and ammonia or substituted ammonia

81
44/418

Having -c(=x)- bonded directly to the nitrogen, wherein x is chalcogen

157
44/419

Additional nitrogen attached indirectly to the -c(=x)- group by acyclic nonionic bonding

107
44/413

Nitro or nitroso bonded directly to carbon

46
44/414

The carbon is acyclic or alicyclic

20
44/432

Plural nitrogens attached indirectly to each other by acyclic nonionic bonding

96
44/433

Chalcogen attached indirectly to one of the nitrogens by acyclic nonionic bonding

79
44/417

Plural nitrogens bonded directly to the same -c(=x)- group, wherein x is chalcogen (e.g., ureas, etc.)

19
44/422

Quaternary ammonium salt or amine oxide

33
44/416

The nitrogen is single bonded directly to nitrogen

9
44/309

Organic oxidate of indeterminate composition containing (e.g., paraffin wax oxidate or petroleum oxidate, etc.)

22
44/310

Chemically reacted organic oxidate (e.g., esterified, etc.)

10
44/436

Organic oxygen compound containing (e.g., alicyclic alcohols, hypochlorites, etc.)

47
44/446

Alkanol compound with dialkyl ether compound

40
44/451

Alkanol

223
44/453

Dehydration processes, and products thereof

23
44/452

Mixture of alkanols

91
44/447

Ether

100
44/448

Dialkyl ether

82
44/449

Tertiary carbon bonded directly to the ether oxygen

81
44/441

Oxygen bonded directly to a polycyclo carbocyclic ring system

12
44/450

Phenol or salt thereof

68
44/440

Plural benzene rings bonded directly to each other or to the same acyclic carbon

27
44/443

Plural oxygens attached indirectly to each other by acyclic nonionic bonding

119
44/445

All the oxygens are present as -oh groups (e.g., glycols, triols, etc.)

41
44/444

Plural oxygens bonded directly to the same acyclic or alicyclic carbon (e.g., acetals, etc.)

25
44/442

Plural oxygens bonded directly to the same monocyclic benzene ring

23
44/437

The oxygen is part of a -c(=o)- group

61
44/439

Acyclic ketone

49
44/438

With alkanol or dialkyl ether

45
44/303

Oxo still bottoms containing (i.e., distillation residues from reaction product of carbon monoxide, hydrogen, and olefin)

1
44/305

Phosphosulfurized or phosphooxidized organic compound of indeterminate structure containing (i.e., reaction products of organic compounds with phosphorus sulfides or oxides)

8
44/307

Plant or animal extract mixtures or extracts of indeterminate structure containing

171
44/308

Containig triglycerides (e.g., castor oil, corn oil, olive oil, lard, etc.)

170
44/312

Quinone or anthraquinone containing (e.g., quinhydrone, benzoquinones, etc.)

15
44/306

Rosin, tall oil, or derivatives thereof containing (except abietic acids or fatty acids derived therefrom)

18
44/320

Silicon containing

56
44/311

Sludge, pitch, tar, or tar distillate containing

35
44/459

Solid hydrocarbon polymer containing

81
44/435

Sulfur or phosphorus attached directly or indirectly, by nonionic bonding, to carbon of an organic compound

48
44/643

Match scratcher composition or structure

8
44/511

Match splint or stick

7
44/512

Process of making

11
44/903

Method including measuring, testing or automatic control

32
44/905

Method involving added catalyst

25
44/904

Method involving electric or wave energy

35
44/628

Miscellaneous fuel composition

108
44/500

Particulate (e.g., powdered, etc.)

64
44/504

Mixed with particles of different composition

37
44/503

Mixed with particles of different size

18
44/505

Process including removal of undesirable

74
44/502

Solid particle containing liquid fuel

41
44/501

Treated to reduce spontaneous ignition

53
44/490

Peat

26
44/491

Briquet

13
44/492

Process including heat

29
44/519

Provided with wick or fuse

33
44/280

Solid carbonaceous fuel dispersed in a liquid medium (e.g., dispersed coal, coke, carbon powder, peat, etc.)

242
44/281

The liquid medium is, or contains, hydrocarbon

146
44/282

Liquid hydrocarbon, or liquid hydrocarbon and water, are the only components

114
44/641

Solid fuel combustion improving composition

29
44/265

Solidified liquid (e.g., gel, etc.)

42
44/266

Liquid alkanol base

26
44/267

With carbohydrate (e.g., cellulose compound, cotton, etc.)

12
44/268

Liquid hydrocarbon base (e.g., gasoline, etc.)

27
44/272

With organic -c(=x)x- compound, wherein the x's are the same or diverse chalcogens (e.g., aluminum carboxylates, rosin salts, etc.)

15
44/270

With organic nitrogen compound

22
44/271

With organic polymer polymerized through olefinic or acetylenic bond (e.g., methacrylate polymers, polypropylene, etc.)

16
44/269

With plant derivative of unknown composition (except rosin or rosin derivatives) or carbohydrate

11
44/640

Wall deposit preventing or removing composition (e.g., soot removal, etc.)

30
44/602

With antidusting additive

38
44/601

With antifreezing additive or treatment

20
44/600

With appearance modifying additive or treatment

18
44/603

With combustion improver

64
44/604

Sulfur bindant

56
44/540

With incombustible carrier (e.g., torch, etc.)

22
 
 
  Recently Added Patents
Bi-directional switch using series connected N-type MOS devices in parallel with series connected P-type MOS devices
Method and apparatus for laser strip splicing
SONOS stack with split nitride memory layer
Method for determining a corrected variance representative of the condition of reception of signals representative of symbols
Credit flow control scheme in a router with flexible link widths utilizing minimal storage
Methods for testing OData services
Measuring current and resistance using combined diodes/resistor structure to monitor integrated circuit manufacturing process variations
  Randomly Featured Patents
Polyester filament yarn and process for producing same, and fabric thereof and process for producing same
Method and system for decentralized manufacture of copy-controlled software
Current-controlled output buffer
Information processing apparatus with video encoding process control based on detected load
Trapping and killing apparatus for mice and other animals
Monitoring of closed circuit liquid cooling systems particularly in internal combustion engines
Sample and hold circuit
Liquid transporting apparatus having temperature regulation
Ribbon guide for an inked ribbon cartridge
Control system for automatic transmission