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

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Examiner: Schaefer, Robert K.


Primary examiner statistics: 916 patents; average approval time: 716 days
Assistant examiner statistics: 0 patents; average approval time: N/A

Patents as Primary Examiner (view all)

Patent No. Patent Title:
4175237 Electric starter for an engine
4160400 Touch responsive keying unit for electronic musical instruments
4159427 Apparatus for utilizing natural energies
4158780 Power generation systems in buoyant structures
4158285 Interactive wristwatch calculator
4157647 Hand reversing system for an electronic timepiece
4155427 Elevator system
4156168 Electric motor
4156169 Servo control apparatus
4155218 Electronic watch
4154053 Electronic timepiece having an adjustable rate of division and me...
4154054 Toy timing device with a slip-stick escapement-like mechanism
4152887 Digital electronic alarm timepiece
4151426 Security timer device
4151423 Flowing saline water magnetohydrodynamic electric generator
4150537 Electronic timepiece and method for testing operation of the same
4150535 Electronic timepiece
4151424 Apparatus for utilization of energy from fluids
4151450 Protective means for feeder of machinery with DC-motor
4149613 Elevator control system
4150300 Electrical and thermal energy supply system for buildings
4150324 Speed control system of traction motor for electric vehicles
4149440 Polyphonic computer organ
4150329 Method and means in an industrial robot for the generation of a c...
4148182 Buzzer mechanism for alarm clock or the like
4149092 System for converting the randomly variable energy of a natural f...
4149116 Motor speed control system
4148184 Electronic timepiece utilizing main oscillator circuit and second...
4149118 Electronic control and regulation system
4147966 Means for digital control
4147022 Electronic timepiece
4147083 Programmable voice characteristic memory system
4147235 Elevator control system
4146800 Apparatus and method of generating electricity from wind energy
4146826 GTO bi-directional motor control circuit
4145872 Electronic watch
4145943 Electronic musical instrument capable of generating a string chor...
4146270 Control device for turbines with speed and load control
4146825 Electric battery powered vehicle
4146264 Load control for wind-driven electric generators

Patents as Assistant Examiner

Patent No. Patent Title:
No patents.
 
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