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

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Examiner: Cavanaugh, David L.


Primary examiner statistics: 0 patents; average approval time: N/A
Assistant examiner statistics: 176 patents; average approval time: 535 days

Patents as Primary Examiner

Patent No. Patent Title:
No patents.

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
5199864 Spherical fluid pump or motor with spherical ball comprising two ...
5199863 Sealing of an eccentric bearing of a rotary piston internal combu...
5192201 Rotary engine and drive coupling
5180298 Hydraulic pump with foamed elastomeric member in outlet chamber t...
5180296 Hydraulic machine having axial user ports
5180297 Fluid transfer pump with shaft seal structure
5171142 Rotary displacement machine with cylindrical pretension on disc-s...
5163825 Articulated vane fluid driven motor
5163826 Crescent gear pump with hypo cycloidal and epi cycloidal tooth sh...
5163824 Rubber-geared pump with shaftless gear
5161961 Gear pump with counterbalanced radial forces and two piece radial...
5160252 Rotary vane machines with anti-friction positive bi-axial vane mo...
5160247 Thrust bearing for refrigeration compressor
5156532 Rotary vane vacuum pump with shaft seal
5156540 Internal gear fuel pump
5156541 Revolving vane pump-motor-meter with a toroidal working chamber
5154593 Vane pump with annular groove in rotor which connects undervane c...
5154587 Magnet pump
5152683 Double rotary piston positive displacement pump with variable off...
5152684 Rotor profile for a Roots vacuum pump
5151021 Fluid compressor with adjustable bearing support plate
5149256 Rotary, positive displacement machine with specific lobed rotor p...
5147194 Rotary piston machine with a protuberance in the cylinder wall
5145349 Gear pump with pressure balancing structure
5145348 Gerotor pump having an improved drive mechanism
5145347 Gerotor pump with blind-end groove on each lobe of the annulus
5145341 Protective shroud for the shaft of a helical gear pump
5141423 Axial flow fluid compressor with oil supply passage through rotor
5141418 Variable capacity type vane pump with a variable restriction orif...
5139399 Compressor interstage coolant injector nozzle
5139401 Oscillatory pump with elastic divider
5137439 Screw rotor machine with De Laval nozzle for noise reduction
5135373 Spur gear with epi-cycloidal and hypo-cycloidal tooth shapes
5135374 Oil flooded screw compressor with thrust compensation control
5133652 Rotary compressor having an aluminum body cast around a sintered ...
5133645 Common rail fuel injection system
5131829 Trapped volume vent means for meshing lobes of roots-type superch...
5131825 Multi-stage vacuum pump with reaction chamber between stages
5129800 Single screw interrupted thread positive displacement mechanism
5127810 Rotary pump or engine with spherical body
 
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