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

Icon_funbox Did You Know...

...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."

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Examiner: Richter, Sheldon J.


Primary examiner statistics: 1003 patents; average approval time: 1001 days
Assistant examiner statistics: 200 patents; average approval time: 738 days

Patents as Primary Examiner (view all)

Patent No. Patent Title:
7257949 Stirling engine
7155912 Method and apparatus for storing and using energy to reduce the e...
7146814 Micro-machine and a method of powering a micro-machine
7131269 Process and an apparatus for utilizing wave energy
7127896 Engine cogeneration system
7127892 Techniques for determining turbocharger speed
7124582 Method and apparatus for determining turbocharger boost
7124580 Sub-zero condensation vacuum system
7124585 Scroll-type expander having heating structure and scroll-type hea...
7117840 Rotary piston machine with an oval rotary piston guided in an ova...
7111461 System and method for testing a rotary flow device
7104061 Fluid machine
7104063 Device for producing mechanical energy
7104056 Design of ferromagnetic shape memory alloy composites and actuato...
7104055 Pressure vibration generator
7100375 System for limiting rotational speed of a turbocharger
7096860 Charge cooling circuit for a multi-cylinder internal combustion e...
7096665 Cascading closed loop cycle power generation
7089737 Housing for a turbocharger
7086230 Pop-off valve for an aircraft engine having a turbocharger contro...
7082763 Exhaust gas turbocharger
7082764 Burnt gas-scavenging indirect-injection internal-combustion super...
7080509 System for obtaining rotational energy from ambient forces
7076954 Turbocharger system
7076952 Supercharged internal combustion engine
7076955 Method for operating an internal combustion engine having at leas...
7073332 Stop device with shape memory actuator
7066157 Supercharge control apparatus and supercharge control method for ...
7065969 Power cycle and system for utilizing moderate and low temperature...
7066158 Homogeneous charge compression ignition internal combustion engin...
7062915 High-efficiency otto cycle engine with power generating expander
7055507 Continuously variable drive for superchargers
7051720 Engine with charge air-cooling system with water fumigation
7047740 Boost pressure estimation apparatus for internal combustion engin...
7047739 Exhaust-gas turbocharger for an internal combustion engine
7047744 Dynamic heat sink engine
7047743 Electric turbo compound configuration for an engine/electric gene...
7043912 Apparatus for extracting exhaust heat from waste heat sources whi...
7040303 Combined aftercooler system with shared fans
7036315 Apparatus and method for detecting low charge of working fluid in...

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
4168030 Waste heat utilization system
4163470 Industrial technique
4161212 Pneumatically controlled wide heat load space radiator
4159740 Direct expansion jacket for horizontal dough mixers
4148357 Heat exchanger matrix for recuperative heat exchange among three ...
4144934 Arrangement for changing the temperature of fluids which form ...
4143619 Heat exchanger for superheating steam
4142577 Cooling device for a liquid-cooled semiconductor power component
4142581 Tube-hole structure for expanded tube-to-tube-sheet joint
4142578 Heat exchanger impingement protection
4141409 Condenser header construction
4140172 Liners and tube supports for industrial and chemical process equi...
4140177 Protective grid and structural support for a radiator
4140175 Vertical counterflow heat exchanger apparatus
4139054 Plate-fin heat exchanger
4137964 Controllable heat transmission apparatus
4137966 Simulation oven
4136735 Heat exchange apparatus including a toroidal-type radiator
4136734 Feedwater heater
4135575 Tube wall made of tubes which extend parallel to one another and ...
4135573 Heat shielding tool
4134450 Surface condenser with vertically separated tube bundles
4132264 Plastic heat exchange tube
4132356 Solar heating for home use
4131155 Reversible heat exchanger or regenerator systems
4131156 Fan shroud
4129179 Apparatus for utilization of waste energy
4129181 Heat transfer surface
4129180 Vapor condensing apparatus
4125147 Method for continuously maintaining a radiator free of debris
4124993 Refrigeration machine
4125148 Method for utilization of waste energy
4125154 Vessel for salt melts, particularly for modifying the properties ...
4124066 Radiator shutter for arctic vehicles
4124064 Consolidated nuclear steam generator
4124068 Heat exchange tube for fluidized bed reactor
4122823 Tubeless heat recuperator
4121656 Header
4120351 Heat exchange panel with improved header
4120352 Device for connecting exchanger tubes to perforated plates
 
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