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

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...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.

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Examiner: Chan, Kawing


Primary examiner statistics: 1 patents; average approval time: N/A
Assistant examiner statistics: 115 patents; average approval time: 118 days

Patents as Primary Examiner

Patent No. Patent Title:
7521626 Automatic player musical instrument, testing system incorporated ...

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
8183813 Power supply arrangement
8179068 Variable-flux motor drive system
8174227 Fan control system
8169180 Motor controller of air conditioner
8159166 Motor drive circuit and electric power steering apparatus
8154227 Model train control system
8148926 Permanent magnet synchronization motor vector control device
8143826 Drive control circuit for electric motor
8138708 Closed-loop motor driver compensation
8134320 Fuel cell drive system
8132653 Controlling elevator door orientation during door movement
8134314 Electric powered vehicle
8120307 System and method for providing constant loading in AC power appl...
8106619 Position sensorless controller for permanent magnet motor
8104586 Elevator motor brake torque measurement device
8106622 Control system for multiphase rotary machines
8089241 Motor drive control apparatus, vehicle equipped with motor drive ...
8084972 Dual lane control of a permanent magnet brushless motor using non...
8080968 Drive control device for a stepper motor and drive control method...
8076891 Motor controller
8076892 Stator position adjustment method, motor drive device and stator ...
8072168 Position detecting apparatus having electric motor and method for...
8072166 Brushless motor
8063601 Motor driving circuit for adjusting speed of a motor by changing ...
8058823 Actuator system with a multi-motor assembly for extending and fle...
8054015 Motor drive apparatus equipped with dynamic braking circuit fault...
8050544 Electronic device for regulating the voltage across a high-side l...
8044621 Motor controller
8040098 Position controller
8030864 Motor drive circuit
8011479 Electrical signal application strategies for monitoring a conditi...
8013550 Model train remote control system having realistic speed and spec...
8004229 Software center and highly configurable robotic systems for surge...
8002087 Entrance/exit device for elevator
7997388 Detection platforms
7994748 Drive control system of an electric vehicle
7994749 Multiple-rotation absolute-value encoder of geared motor
7990099 Power converting device for electric train
7982118 Musical data input
7973509 Numerical controller having control mode switching function
 
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