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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: 4,105,400	Total Inventors: 2,361,974	Total Patent Holders: 339,906

Patents by category


Business	115,327
Data processing: financial, business practice, management, or cost/price determination	42,289
Education and demonstration	18,973
Electronic funds transfer	2,574
...more


Chemistry	1,944,151
Catalyst, solid sorbent, or support therefor: product or process of making	83,129
Chemistry of carbon compounds	1,800
Chemistry of hydrocarbon compounds	36,980
...more


Clothing, Fashion & Accessories	290,991
Apparel	32,674
Apparel and haberdashery	7,565
Apparel apparatus	3,832
...more


Communications	968,763
Acoustics	18,372
Communications, electrical: acoustic wave systems and devices	19,051
Communications: directive radio wave systems and devices (e.g., radar, radio navigation)	44,007
...more


Construction	548,823
Boring or penetrating the earth	22,318
Bridges	2,571
Building units and construction elements	12,398
...more


Electrical & Energy	1,586,862
Amplifiers	33,685
Automatic temperature and humidity regulation	8,341
Batteries: thermoelectric and photoelectric	12,884
...more


Engineering	385,046
Fluid handling	76,580
Hydraulic and earth engineering	31,669
Semiconductor device manufacturing: process	276,797
...more


Entertainment & Recreation	201,809
Amusement devices	3,424
Amusement devices: games	25,693
Amusement devices: games	15,671
...more


Firearms & Weapons	46,595
Ammunition and explosive-charge making	1,539
Ammunition and explosives	18,768
Firearms	8,702
...more


Food	149,757
Butchering	5,868
Edible products	2,346
Equipment for preparing or serving food or drink not elsewhere specified	9,141
...more


Health & Medicine	942,160
Dentistry	18,947
Drug, bio-affecting and body treating compositions	205,153
Drug, bio-affecting and body treating compositions	324,027
...more


Household	393,905
Baths, closets, sinks, and spittoons	22,892
Beds	30,516
Brush, broom, and mop making	673
...more


Industrial	1,740,171
Advancing material of indeterminate length	8,784
Agitating	27,075
Bearings	24,784
...more


Information Technology	1,563,325
Coded data generation or conversion	34,774
Computer graphics processing, operator interface processing, and selective visual display systems	105,600
Cryptography	22,315
...more


Material Science	1,881,907
Alloys or metallic compositions	18,596
Animal husbandry	18,505
Cleaning and liquid contact with solids	51,295
...more


Optical & Optics	574,032
Coherent light generators	45,264
Illumination	92,855
Image analysis	79,501
...more


Packaging & Containers	392,287
Article dispensing	15,929
Bottles and jars	18,761
Coin handling	1,476
...more


Paper, Printing & Office Supplies	251,874
Binder device releasably engaging aperture or notch of sheet	3,407
Bookbinding: process and apparatus	2,644
Books, strips, and leaves	5,036
...more


Physics	671,511
Active solid-state devices (e.g., transistors, solid-state diodes)	596,414
Induced nuclear reactions: processes, systems, and elements	20,675
Nuclear technology	8,451
...more


Plants, Animals & Agriculture	160,195
Animal husbandry	5,042
Bee culture	336
Butchering	5,868
...more


Tools & Hardware	406,205
Abrading	48,603
Abrasive tool making process, material, or composition	7,054
Adhesive bonding and miscellaneous chemical manufacture	138,951
...more