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

Icon_funbox Did You Know...

...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!

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Examiner: Sircus, Brian


Primary examiner statistics: 2359 patents; average approval time: 2358 days
Assistant examiner statistics: 196 patents; average approval time: 781 days

Patents as Primary Examiner (view all)

Patent No. Patent Title:
7558043 Amperage control for valves
7486489 System and method for speed control and stall protection combinat...
7271505 Voltage balancing in intermediate circuit capacitors
7271508 Method for deicing energized electrical transmission lines
7265955 Protective circuit for analog sensors
7262945 Electrical over/under voltage automatic disconnect apparatus and ...
7262567 Actuator driving apparatus
7262522 Microelectromechanical isolating power converter
7259477 Uninterruptible power supply
7259950 Load-protection control circuit of power supply
7259954 Electrical static discharge method and apparatus
7259474 Method and apparatus for aggregating power from multiple sources
7259944 Method for operating a switch with a connectable current limiter ...
7256513 Locomotive auxiliary power system
7256976 Electrostatic discharge protective circuit and semiconductor inte...
7256978 Gapped ground safety device
7256517 Interface circuit for providing a computer logic circuit with fir...
7254001 Circuit protection system
7254002 Reverse conduction protection method and apparatus for a dual pow...
7250693 Electronic vehicle theft preventive device
7246680 Sound dampening assembly for automotive exhaust system
7248457 Electrostatic chuck
7247956 Performance test board
7245465 Voltage regulator
7245474 Circuit arrangement and method for controlling a bistable magneti...
7245044 Electrical system, and control module and smart power supply for ...
7240765 Customized hearing protection earplug with an acoustic filter and...
7242113 Power semiconductor device
7242562 Fan protection method and apparatus
7242563 Reverse phase control power switching circuit with overload prote...
7242112 Control element or switching element for vehicles
7242114 Thermostat device with line under frequency detection and load sh...
7239497 Environmentally hardened Ethernet switch
7239490 Medium voltage vacuum circuit interrupter
7239496 Distance protective relay using a programmable thermal model for ...
7239045 Power distribution system and control system for same
7239041 Light emitting device for vehicles
7239047 Switch device incorporating capacitive oscillator
7236344 Ionic flow generator for thermal management
7233477 Data erasing device using permanent magnet

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
5796233 Multiple-stator induction synchronous motor
5621293 Variable-reluctance servocontrolled linear motor
5596254 Two-axis angular effector
5530325 Speed control circuit for a universal motor
5521482 Method and apparatus for determining mechanical performance of po...
5512810 Variable speed control for a hand-held electric power tool
5465035 Band limited control of a flexible structure using piecewise ...
5461293 Rotor position detector
5461189 Waveguide electronic musical instrument employing pre-performance...
5457371 Binary locally-initializing incremental encoder
5457372 Load sensing, soft-braking method and apparatus using the same
5457365 Disk drive power management system
5451710 Waveform synthesizing apparatus
5451851 Method and apparatus for one wire motor speed and direction decod...
5451852 Control system having signal tracking window filters
5449987 Window operator control
5449990 Single cycle positioning system
5448147 Selectable feedback control system
5446353 Digital motor communication circuit and method
5444344 System for controlling variable frequency driver for AC motor inc...
5442270 Adaptive sliding mode control method for object of control includ...
5442272 Current limiting for DC electric motor start-up
5434489 Method and system for path planning in cartesian space
5432424 Motor control device motor control device including a gate elemen...
5430241 Signal processing method and sound source data forming apparatus
5430362 Engine starting system utilizing multiple controlled acceleration...
5428275 Controlled starting method for a gas turbine engine
5428274 Drive control apparatus of series hybrid vehicle
5428281 Semiconductor integrated circuit device
5426352 Automatic honing apparatus
5422555 Apparatus and method for establishing a reference signal with an ...
5418441 Deflection correcting method for a robot
5416395 Carriage drive control for a printer
5416396 Linear encoder and a guide unit on which it is equipped
5414793 Speed control mechanism for a power tool
5414338 Method and apparatus for suppressing electrical impulse noise cre...
5408911 Musical instrument string
5410099 Channel assigning system for use in an electronic musical instrum...
5406183 Integrated reversible load controller
5406184 High-speed plural-phase reluctance type motor including a plurali...
 
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