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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: 4,051,638	Total Inventors: 2,361,974	Total Patent Holders: 339,906

Patents by category


Business	112,908
Data processing: financial, business practice, management, or cost/price determination	40,406
Education and demonstration	18,856
Electronic funds transfer	2,556
...more


Chemistry	1,927,657
Catalyst, solid sorbent, or support therefor: product or process of making	82,099
Chemistry of carbon compounds	1,795
Chemistry of hydrocarbon compounds	36,678
...more


Clothing, Fashion & Accessories	288,113
Apparel	32,493
Apparel and haberdashery	7,114
Apparel apparatus	3,805
...more


Communications	946,110
Acoustics	18,195
Communications, electrical: acoustic wave systems and devices	18,895
Communications: directive radio wave systems and devices (e.g., radar, radio navigation)	43,258
...more


Construction	544,639
Boring or penetrating the earth	22,082
Bridges	2,559
Building units and construction elements	12,249
...more


Electrical & Energy	1,567,552
Amplifiers	33,266
Automatic temperature and humidity regulation	8,276
Batteries: thermoelectric and photoelectric	12,772
...more


Engineering	379,691
Fluid handling	76,125
Hydraulic and earth engineering	31,436
Semiconductor device manufacturing: process	272,130
...more


Entertainment & Recreation	199,360
Amusement devices	3,410
Amusement devices: games	25,491
Amusement devices: games	15,161
...more


Firearms & Weapons	46,161
Ammunition and explosive-charge making	1,524
Ammunition and explosives	18,636
Firearms	8,600
...more


Food	148,415
Butchering	5,830
Edible products	2,308
Equipment for preparing or serving food or drink not elsewhere specified	8,564
...more


Health & Medicine	931,302
Dentistry	18,831
Drug, bio-affecting and body treating compositions	203,143
Drug, bio-affecting and body treating compositions	321,469
...more


Household	388,710
Baths, closets, sinks, and spittoons	22,805
Beds	30,188
Brush, broom, and mop making	663
...more


Industrial	1,726,086
Advancing material of indeterminate length	8,769
Agitating	26,930
Bearings	24,546
...more


Information Technology	1,526,693
Coded data generation or conversion	34,233
Computer graphics processing, operator interface processing, and selective visual display systems	103,036
Cryptography	21,699
...more


Material Science	1,868,329
Alloys or metallic compositions	18,514
Animal husbandry	18,301
Cleaning and liquid contact with solids	50,868
...more


Optical & Optics	564,174
Coherent light generators	44,627
Illumination	91,133
Image analysis	76,807
...more


Packaging & Containers	387,877
Article dispensing	15,802
Bottles and jars	18,637
Coin handling	1,469
...more


Paper, Printing & Office Supplies	250,275
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	662,247
Active solid-state devices (e.g., transistors, solid-state diodes)	587,842
Induced nuclear reactions: processes, systems, and elements	20,604
Nuclear technology	8,451
...more


Plants, Animals & Agriculture	157,529
Animal husbandry	4,962
Bee culture	333
Butchering	5,830
...more


Tools & Hardware	402,845
Abrading	48,313
Abrasive tool making process, material, or composition	7,023
Adhesive bonding and miscellaneous chemical manufacture	138,147
...more