U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.

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Examiner: Rothberg, Samuel B.


Primary examiner statistics: 68 patents; average approval time: 589 days
Assistant examiner statistics: 0 patents; average approval time: N/A

Patents as Primary Examiner (view all)

Patent No. Patent Title:
4004443 Dynamic sealing device for high-temperature and high-pressure ope...
4003581 Field dressable inflatable packer
3999767 Piston ring system
3997175 Shaft seal assembly
3986708 Mobile batching plant
3986721 Two component gasket and method of making it
3985366 Duo-cone seal flexible mounting
3984113 Bidirectional hydrodynamic polytetrafluoroethylene seal
3980309 Two-part scraper-type shaft-seal
3980004 Piston and seal assemblies
3980310 Ring manufacture, productive of face contact seal
3979130 Sleeves
3977086 Range estimating device for golfers
3977685 Rotating bellows seal
3976284 Concrete mixer trailer
3976000 Rotatable and vertically adjustable rack
3975095 Catoptric projection system with a spherical reflecting surface
3975026 Sealing cartridge for rotating shafts
3975028 Apparatus for sealing a track shoe
3973779 Sealing arrangement
3973783 Pipe joint sealing device
3973780 Seal mounting arrangement
3972396 Leakage detector with back pressure sensor
3972535 Spindle drive motor
3971565 Seal assembly for pillow block housing
3971563 Shaft sealing apparatus using a fluid sealing system
3971566 Hydraulic sealing member and process
3970322 Cylinder head gasket for internal-combustion engine
3968570 Electronic sextant
3968969 Sealing arrangement
3968971 Fluid-tight packing
3967674 Sealing structure for a machine for centrifugally casting pipes a...
3967829 Seal ring
3964754 Device for sealing the end of sheath pipe
3964662 Sealing apparatus
3963247 Shaft seal
3963338 Low profile episcopic projector and opaque materials therefor
3963245 Apparatus for automatically returning a pick-up arm in a record p...
3963054 Seal assemblies for water-well casings
3959885 Trolling depthometer

Patents as Assistant Examiner

Patent No. Patent Title:
No patents.
 
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