US Patent Companies

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes

H02G - Installation OF Electric Cables OR Lines, OR OF Combined Optical AND Electric Cables OR Lines

H03F - Amplifiers

F21W - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems

H01L - Semiconductor Devices NOT Covered BY Class H10

A46B - Brushes

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties

B60Y - Indexing Scheme Relating TO Aspects Cross-cutting Vehicle Technology

F41G - Weapon SIGHTS; Aiming

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials

H01J - Electric Discharge Tubes OR Discharge Lamps

H01L - Semiconductor Devices NOT Covered BY Class H10

A63H - Toys, e.g. Tops, Dolls, Hoops OR Building Blocks

F41B - Weapons FOR Projecting Missiles Without USE OF Explosive OR Combustible Propellant CHARGE; Weapons NOT Otherwise Provided FOR

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing

H04N - Pictorial Communication, e.g. Television

H03F - Amplifiers

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication

G06F - Electric Digital Data Processing

A61B - DIAGNOSIS; SURGERY; Identification

G06T - Image Data Processing OR Generation, IN General

E03B - Installations OR Methods FOR Obtaining, Collecting, OR Distributing Water

G02C - SPECTACLES; Sunglasses OR Goggles Insofar AS They Have THE Same Features AS SPECTACLES; Contact Lenses

A61H - Physical Therapy Apparatus, e.g. Devices FOR Locating OR Stimulating Reflex Points IN THE BODY; Artificial RESPIRATION; MASSAGE; Bathing Devices FOR Special Therapeutic OR Hygienic Purposes OR Specifi

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes

B41J - TYPEWRITERS; Selective Printing Mechanisms, i.e. Mechanisms Printing Otherwise Than From A FORME; Correction OF Typographical Errors

H01L - Semiconductor Devices NOT Covered BY Class H10

H10D - Inorganic Electric Semiconductor Devices

A61D - Veterinary Instruments, Implements, Tools, OR Methods

A63J - Devices FOR Theatres, Circuses, OR THE LIKE; Conjuring Appliances OR THE Like

B64D - Equipment FOR Fitting IN OR TO AIRCRAFT; Flight SUITS; PARACHUTES; Arrangement OR Mounting OF Power Plants OR Propulsion Transmissions IN Aircraft

A61F - Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device