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Class Information
Number: 420
Name: Alloys or metallic compositions >
Description: STATEMENT OF CLASS SUBJECT MATTER


Class Number Class Name No. of Patents
420/400

Alkali metal base

25
420/415

Alkaline earth metal base

15
420/528

Aluminum base

219
420/554

Cadmium, lead, or bismuth containing

39
420/529

Copper containing

86
420/538

Iron, cobalt, or nickel containing

89
420/533

Magnesium containing

118
420/534

Silicon containing

138
420/536

Cadmium, lead or bismuth containing

13
420/535

Titanium, zirconium, hafnium, vanadium, niobium, or tantalum containing

147
420/537

Silicon containing

107
420/539

Silver containing

22
420/530

Tin containing

49
420/531

Zinc containing

32
420/532

Magnesium containing

133
420/550

Iron, cobalt, or nickel containing

121
420/551

Titanium, zirconium, hafnium, vanadium, noobium or tantalum containing

99
420/542

Magnesium containing

105
420/547

Iron, cobalt, or nickel containing

55
420/546

Silicon containing

91
420/543

Titanium, zirconium, hafnium, vanadium, niobium, or tantalum containing

83
420/545

Chromium containing

32
420/544

Silicon containing

69
420/548

Silicon containing

161
420/549

Alkali, or alkaline earth metal containing

58
420/552

Titanium, zirconium, hafnium, vanadium, niobium, or tantalum containing

133
420/553

Manganese containing

90
420/540

Zinc containing

54
420/541

Magnesium containing

67
420/576

Antimony base

29
420/579

Arsenic base or selenium or tellurium base alloy containing metal

51
420/401

Beryllium base

20
420/577

Bismuth base

32
420/525

Cadmium base

17
420/428

Chromium base

93
420/435

Cobalt base

212
420/436

Chromium containing

116
420/437

Aluminum containing

55
420/438

Titanium containing

30
420/440

Iron containing

74
420/439

Titanium containing

37
420/580

Containing over 50 per cent metal but no base metal

249
420/588

Chromium containing

182
420/587

Copper containing

150
420/581

Iron containing

187
420/583

Chromium containing

81
420/584.1

Nickel containing

148
420/585

Cobalt containing

91
420/586

Titanium, or zirconium containing

117
420/586.1

Molybdenum containing

128
420/582

Copper containing

118
420/589

Tin containing

78
420/469

Copper base

87
420/489

Aluminum, gallium, indium, or thallium containing

61
420/494

Beryllium, magnesium, or alkaline earth metal containing

44
420/498

Cadmium, or mercury containing

6
420/496

Iron or cobalt containing

45
420/491

Lead containing

22
420/493

Manganese containing

23
420/485

Nickel containing

78
420/486

Aluminum containing

45
420/487

Iron or manganese containing

62
420/488

Refractory metal containing

38
420/497

Noble metal containing

43
420/495

Other refractory metal containing

48
420/499

Phosphorus, arsenic, antimony, or bismuth containing

50
420/490

Silicon containing

42
420/500

Sulfur, selenium, or tellurium containing

33
420/470

Tin containing

56
420/471

Aluminum containing

32
420/473

Iron, manganese or nickel containing

94
420/474

Lead containing

22
420/475

Zinc containing

21
420/472

Phosphorus containing

65
420/476

Zinc containing

42
420/492

Titanium, zirconium or hafnium containing

76
420/477

Zinc containing

60
420/478

Aluminum containing

36
420/480

Manganese containing

30
420/479

Nickel containing

40
420/482

Manganese containing

20
420/481

Nickel containing

47
420/483

Noble metal containing

12
420/484

Refractory metal containing

14
420/8

Ferrous (i.e., iron base)

91
420/120

1.5 percent or more manganese containing, but less than 8 percent

50
420/9

1.7 percent or more carbon containing

34
420/13

2.7 percent or more carbon equivalent containing (i.e., cast iron)

36
420/14

Boron containing

14
420/15

Chromium containing

31
420/16

Nickel containing

18
420/17

Molybdenum containing

22
420/26

Copper containing

17
420/27

Nickel or molybdenum containing

28
420/28

Over .1 percent aluminum containing

12
420/18

Processes of adding magnesium

19
420/19

Adding magnesium as a liquid, vapor or as a solid agent entrained by gas (e.g., fluidized)

17
420/20

Flowing molten iron alloy onto solid magnesium containing agent, or adding solid magnesium containing agent to molten stream of iron alloy

30
420/25

In agent also containing silicon, rare earth, or alkaline earth metal

22
420/23

Magnesium containing agent is coated, impregnated, or compacted (e.g., briquetted, coated particles)

27
420/24

Magnesium present in agent only as a compound with a nonmetal

3
420/21

Mechanically plunging magnesium containing agent below surface of iron alloy melt

18
420/22

Separate addition of plural agents, at least one containing magnesium

18
420/29

Processes

28
420/30

Adding rare earth or alkaline earth metal

32
420/33

Adding silicon

25
420/31

Adding sulfur, selenium or tellurium

9
420/32

Adding vanadium, titanium, niobium, or zirconium

8
420/10

Six percent or more total group iv, v or vi transition metals containing

33
420/11

Eight percent or more chromium containing

16
420/12

Molybdenum, tungsten or vanadium containing

43
420/121

Boron containing

246
420/104

Chromium containing, but less than 9 percent

129
420/105

Molybdenum containing

72
420/106

Boron or beryllium containing

53
420/107

Cobalt containing

40
420/108

Nickel containing

62
420/109

Vanadium, titanium or zirconium containing

110
420/110

Titanium, zirconium or niobium containing

73
420/111

Vanadium containing

72
420/112

Nickel containing

62
420/113

Tungsten containing

12
420/115

Processes

9
420/116

Including reducing a chromium compound

5
420/114

Tungsten containing

24
420/89

Copper containing

46
420/90

Chromium containing

31
420/91

Nickel containing

47
420/92

Nickel containing

40
420/93

Vanadium, zirconium, titanium or molybdenum containing

21
420/72

Eight percent or more manganese containing

31
420/74

Chromium containing

42
420/76

Copper containing

6
420/73

Nickel containing

40
420/75

Titanium containing

19
420/77

Four percent or more aluminum containing

37
420/79

Chromium containing

46
420/80

Nickel or cobalt containing

22
420/78

Over 2 percent silicon containing

21
420/81

Zirconium, vanadium or titanium containing

23
420/84

Lead, bismuth, selenium, tellurium or calcium containing

99
420/85

Processes

24
420/86

Adding lead

13
420/123

Molybdneum containing

41
420/124

Vanadium, tantalum or titanium containing

27
420/119

Nickel containing, but 10 percent or less

79
420/34

Nine percent or more chromium containing

103
420/65

0.25 percent or more nitrogen containing

28
420/66

Group iv or v transition metal containing

15
420/64

Boron containing

51
420/36

Cobalt containing

40
420/37

Molybdenum or tungsten containing

36
420/39

Copper containing

12
420/38

Nickel containing

64
420/60

Copper containing

52
420/61

Molybdenum or tungsten containing

64
420/43

Eight percent or more nickel containing

83
420/49

Copper containing

55
420/54

Group iv or v transition metal containing

48
420/52

Molybdenum containing

69
420/53

Group iv or v transition metal containing

65
420/55

Over 0.1 percent carbon containing

18
420/50

Over 1.5 percent silicon containing

62
420/51

Group iv or v transition metal containing

30
420/44

Over 2 percent manganese containing

33
420/45

Copper containing

24
420/48

Group iv or v transition metal containing

23
420/46

Molybdenum or tungsten containing

41
420/47

Group iv or v transition metal containing

37
420/56

Eight percent or more total nickel plus manganese containing

65
420/58

Copper containing

33
420/57

Molybdenum or tungsten containing

75
420/59

Over 0.20 percent nitrogen containing

49
420/70

Group iv or v transition metal containing

73
420/41

Lead, bismuth, antimony, calcium, selenium or tellurium containing

69
420/67

Molybdenum or tungsten containing

88
420/68

Titanium, zirconium or hafnium containing

60
420/69

Vanadium, niobium or tantalum containing

102
420/35

Noble metal containing

22
420/42

Over 0.05 percent sulfur, over 0.04 percent phosphorus or sulfur or phosphorus added in any amount to promote machinability

73
420/62

Over 0.1 percent aluminum containing

56
420/63

Molybdenum or tungsten conaining

35
420/71

Processes

33
420/40

Rare earth containing

110
420/128

Nitrogen containinig

76
420/82

Noble metal containing

19
420/99

One percent or more carbon containing, but less than 1.7 percent

28
420/100

Chromium containing

29
420/101

Molybdenum containing

32
420/102

Cobalt containing

17
420/87

Over 0.05 percent sulfur, over 0.04 percent phosphorus or sulfur or phosphorus added in any amount to promote machinability

95
420/88

Processes of making or treating alloy containing over 0.04 percent phosphorus

15
420/103

Over 0.1 percent aluminum containing, but less than 4 percent

73
420/94

Over 10 percent nickel containing

73
420/97

Chromium containing

56
420/95

Cobalt containing

68
420/96

Molybdenum containing

46
420/98

Over 1 percent silicon containing

19
420/129

Processes

118
420/83

Rare earth metal containing

264
420/126

Titanium containing

79
420/122

Tungsten containing

29
420/117

Two percent or more silicon containing

120
420/118

Titanium, molybdenum, tungsten or vanadium containing

22
420/127

Vanadium, tantalum or niobium containing

98
420/125

Zirconium containing

33
420/555

Gallium, indium, or thallium base

67
420/556

Germanium base

19
420/507

Gold base

78
420/512

Iron, cobalt, or nickel containing

36
420/508

Palladium containing

57
420/509

Platinum containing

27
420/510

Platinum containing

25
420/511

Silver containing

39
420/900

Hydrogen storage

431
420/563

Lead base

28
420/564

Alkali, alkaline earth metal or magnesium containing

17
420/565

Tin containing

17
420/572

Antimony containing

17
420/567

Arsenic containing

4
420/568

Tin containing

3
420/569

Antimony containing

13
420/575

Cadmium containing

1
420/573

Copper containing

14
420/566

Silver containing

32
420/570

Tin containing

42
420/571

Antimony containing

22
420/574

Zinc containing

2
420/402

Magnesium base

65
420/407

Aluminum containing

55
420/410

Manganese containing

23
420/408

Zinc containing

31
420/409

Manganese containing

36
420/405

Lanthanide containing

35
420/406

Zirconium containing

15
420/413

Manganese containing

12
420/403

Silver containing

12
420/404

Manganese containing

1
420/411

Zinc containing

30
420/412

Manganese containing

14
420/414

Zirconium containing

7
420/434

Manganese base

58
420/526

Mercury base

30
420/527

Silver containing

29
420/591

Miscellaneous

8
420/429

Molybdenum base

81
420/441

Nickel base

142
420/460

Aluminum containing

89
420/442

Chromium containing

111
420/445

Aluminum containing

165
420/446

Titanium containing

57
420/450

Molybdenum or tungsten containing

58
420/447

Tantalum, niobium, vanadium, or hafnium containing

73
420/448

Molybdenum or tungsten containing

215
420/449

Zirconium or boron containing

80
420/452

Iron or manganese containing

85
420/453

Molybdenum or tungsten containing

93
420/454

Cobalt containing

52
420/444

Noble metal containing

37
420/443

Rare earth, magnesium or alkaline earth metal containing

187
420/451

Titanium containing

69
420/457

Copper containing

44
420/458

Iron containing

24
420/459

Iron or manganese containing

107
420/456

Noble metal containing

32
420/455

Rare earth containing

97
420/425

Niobium base

65
420/426

Titanium, zirconium, or hafnium containing

51
420/461

Osmium or iridium base

28
420/463

Palladium base

88
420/464

Copper containing

36
420/465

Platinum containing

14
420/466

Platinum base

65
420/468

Nickel containing

14
420/467

Rhodium containing

16
420/590

Processes

388
420/1

Radioactive

17
420/2

Actinide base; singly or in combination

10
420/3

Uranium base

25
420/7

Aluminum base

5
420/4

Iron base

4
420/5

Magnesium base

2
420/6

Nickel or cobalt base

3
420/416

Rare earth metal base singly or in combination

97
420/433

Rhenium base

24
420/462

Ruthenium or rhodium base

33
420/903

Semiconductive

38
420/578

Silicon base alloy containing metal

87
420/501

Silver base

77
420/502

Copper containing

76
420/503

Other noble metal containing

38
420/504

Zinc, or cadmium containing

37
420/505

Other noble metal containing

32
420/506

Zinc, or cadmium containing

16
420/901

Superconductive

73
420/902

Superplastic

80
420/427

Tantalum base

76
420/557

Tin base

93
420/562

Antimony, or bismuth containing

92
420/560

Copper containing

81
420/561

Antimony, or bismuth containing

74
420/558

Lead containing

26
420/559

Antimony, or bismuth containing

34
420/417

Titanium base

202
420/418

Aluminum containing

174
420/419

Tin containing

39
420/420

Vanadium containing

87
420/421

Chromium or molybdenum containing

145
420/430

Tungsten base

64
420/431

Carbon, boron or nitrogen containing

26
420/432

Rhenium or noble metal containing

18
420/424

Vanadium base

40
420/513

Zinc base

49
420/514

Aluminum containing

40
420/515

Copper containing

15
420/518

Manganese, iron, cobalt, or nickel containing

10
420/516

Mangesium containing

17
420/517

Tin containing

4
420/519

Magnesium containing

19
420/520

Manganese, iron, cobalt, or nickel containing

14
420/523

Cadmium containing

9
420/521

Copper containing

6
420/522

Manganese, iron, cobalt, or nickel containing

1
420/524

Tin containing

11
420/422

Zirconium or hafnium base

184
420/423

Copper containing

27
 
 
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