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

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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.

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Examiner: Cohan, Alan


Primary examiner statistics: 2280 patents; average approval time: 625 days
Assistant examiner statistics: 0 patents; average approval time: N/A

Patents as Primary Examiner (view all)

Patent No. Patent Title:
5255715 Control valve having parallel diversionary slots interconnected b...
5247959 Multi-function valve
5218986 Pneumatically pressurized water pumping apparatus
5218985 Method and apparatus for eliminating unequal phase splitting at p...
5218983 Dispersal valve and canister
5218987 Method and apparatus for water surge protection and protection of...
5217037 Homogenizing apparatus having magnetostrictive actuator assembly
5217035 System for automatic control of public washroom fixtures
5217201 Hot water faucet safety apparatus
5217199 Connecting valve and hydraulic oil safety and power system in whi...
5215111 Method of performance improvement for an I/P servo
5215121 Tube separator
5213133 Pressure responsive pilot control valve
5211200 Automatic bleed valves
5211201 Intravenous fluid delivery system with air elimination
5209254 Water and sewerage system for construction, and protection for th...
5209255 Accumulator loading valve
5207737 Analog output electro-pneumatic transducer
5207240 Self aligning nozzle for a flapper valve
5207246 Fluid valve, in particular an air pressure valve
5205533 Ball valve
5205315 Automatic wet tank drain valve
5205314 Air compressor condensate removal system
5205134 Gas liquefaction process and refrigeration plant
5205316 Air/water volume control system
5205310 System and method for flow control for high watercut oil producti...
5205538 Detent mechanism for a fluid control valve
5203367 Apparatus for supplying liquid under constant pressure
5201339 Treatment of liquids
5201342 Pulsator device
5199280 Co-rotational scroll compressor supercharger device
5198717 High-power radiator
5195552 Check valve with exchangeable valving elements
5195556 Pressure relief valve
5195559 Rotary slide valve for auxiliary-power steering devices for motor...
5190068 Control apparatus and method for controlling fluid flows and pres...
5188148 Conduit plate for fluid delivery system
5187947 Wheel type freezer and method for rapid, low temperature freezing
5186203 Free float steam trap
5184773 Pressure regulating heater control valve

Patents as Assistant Examiner

Patent No. Patent Title:
No patents.
 
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