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Patent Genius is the leading patent site offering information on millions of patents. Whether you’re an inventor, a patent attorney or just somebody who is just curious about what patents are out there and who holds which patents we have the information you are looking for. Patent Genius has full text patent descriptions, lists of patents by inventor and companies that hold patents, the ability to view all patents in any class or category, and much more. Patent Genius also features searches by inventor, holder, patent number and patent title.

Patent Genius also features guides for helping you through the patent process including:
	Patent Application Process		Patent Approval Process		Selecting a Patent Attorney

Current Patent Genius Counts:
Total Patents: 4,055,428	Total Inventors: 2,361,974	Total Patent Holders: 339,906

Patents by category


Business	113,063
Data processing: financial, business practice, management, or cost/price determination	40,528
Education and demonstration	18,863
Electronic funds transfer	2,559
...more


Chemistry	1,929,062
Catalyst, solid sorbent, or support therefor: product or process of making	82,176
Chemistry of carbon compounds	1,796
Chemistry of hydrocarbon compounds	36,694
...more


Clothing, Fashion & Accessories	288,308
Apparel	32,497
Apparel and haberdashery	7,146
Apparel apparatus	3,807
...more


Communications	947,769
Acoustics	18,212
Communications, electrical: acoustic wave systems and devices	18,910
Communications: directive radio wave systems and devices (e.g., radar, radio navigation)	43,314
...more


Construction	544,924
Boring or penetrating the earth	22,089
Bridges	2,559
Building units and construction elements	12,249
...more


Electrical & Energy	1,568,823
Amplifiers	33,291
Automatic temperature and humidity regulation	8,281
Batteries: thermoelectric and photoelectric	12,780
...more


Engineering	380,064
Fluid handling	76,154
Hydraulic and earth engineering	31,445
Semiconductor device manufacturing: process	272,465
...more


Entertainment & Recreation	199,553
Amusement devices	3,410
Amusement devices: games	25,503
Amusement devices: games	15,204
...more


Firearms & Weapons	46,194
Ammunition and explosive-charge making	1,524
Ammunition and explosives	18,640
Firearms	8,607
...more


Food	148,509
Butchering	5,830
Edible products	2,319
Equipment for preparing or serving food or drink not elsewhere specified	8,607
...more


Health & Medicine	932,222
Dentistry	18,851
Drug, bio-affecting and body treating compositions	203,337
Drug, bio-affecting and body treating compositions	321,683
...more


Household	389,086
Baths, closets, sinks, and spittoons	22,813
Beds	30,207
Brush, broom, and mop making	663
...more


Industrial	1,727,134
Advancing material of indeterminate length	8,772
Agitating	26,936
Bearings	24,562
...more


Information Technology	1,529,646
Coded data generation or conversion	34,279
Computer graphics processing, operator interface processing, and selective visual display systems	103,234
Cryptography	21,746
...more


Material Science	1,869,201
Alloys or metallic compositions	18,523
Animal husbandry	18,311
Cleaning and liquid contact with solids	50,895
...more


Optical & Optics	564,765
Coherent light generators	44,659
Illumination	91,240
Image analysis	76,974
...more


Packaging & Containers	388,197
Article dispensing	15,803
Bottles and jars	18,654
Coin handling	1,469
...more


Paper, Printing & Office Supplies	250,358
Binder device releasably engaging aperture or notch of sheet	3,381
Bookbinding: process and apparatus	2,619
Books, strips, and leaves	5,015
...more


Physics	662,949
Active solid-state devices (e.g., transistors, solid-state diodes)	588,517
Induced nuclear reactions: processes, systems, and elements	20,609
Nuclear technology	8,451
...more


Plants, Animals & Agriculture	157,683
Animal husbandry	4,965
Bee culture	333
Butchering	5,830
...more


Tools & Hardware	403,054
Abrading	48,322
Abrasive tool making process, material, or composition	7,024
Adhesive bonding and miscellaneous chemical manufacture	138,203
...more