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: Lopez, F. Daniel


Primary examiner statistics: 1604 patents; average approval time: 1603 days
Assistant examiner statistics: 242 patents; average approval time: 598 days

Patents as Primary Examiner (view all)

Patent No. Patent Title:
8011485 Hydraulic oil supply structure and vehicle drive apparatus provid...
8001883 Return to neutral device for a hydraulic apparatus
8001777 Axle driving apparatus
7997185 Piston ring
7992484 Rotary hydraulic machine and controls
7987766 Hydraulic cylinder apparatus
7984610 Hydrodynamic machine
7980167 Axial piston compressor
7975598 Hydraulic valve arrangement
7971520 Fluid power arrangement
7971435 Hyrdaulic transmission
7966925 Combination mismatched metal-to-metal seal and O-ring seal with v...
7966813 Sealing element for a brake cylinder of a vehicle braking system
7963208 Mounting mechanism for a position-detecting sensor
7958814 Power assembly for internal combustion engine with welded-in pist...
7958725 Drivetrain system having simultaneous displacement control
7954315 Hydraulic circuit structure of work vehicle
7954317 Hydraulic system
7954316 Hydrostatic stepless transmission
7950321 Hydraulic system
7946630 Hydraulic system
7946216 Two-part piston for an internal combustion engine
7946114 Hydraulic control system
7937937 Turbine and pump shells for torque converters and methods of manu...
7938056 Pneumatic servobrake and diaphragm therefor
7934377 Apparatus for easing impact on boom of excavator and method of co...
7934376 Hydraulic actuation assembly
7930887 Hydraulic master cylinder and vehicle provided with the same
7930970 Control unit for work machine
7921764 Hydraulic control device of working machine
7921642 Inertial body drive system
7913613 Piston/cylinder unit
7908853 Hydraulic balancing for steering management
7908962 Compressor
7908960 Return to neutral mechanism for hydraulic pump
7905088 Energy recovery and reuse techniques for a hydraulic system
7905089 Actuator control system implementing adaptive flow control
7900446 Hydrostatic drive with rotational speed limitation
7895937 Piston having twisted skirt panels
7895837 Differential hydraulic master cylinder

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
5493860 Method for flushing a closed loop hydraulic system
5406793 Transmission and control mechanism for hydrostatic-mechanical pow...
5396364 Continuously operated spatial light modulator apparatus and metho...
5390495 Assembly of a hydraulic motor and of a brake and compactor applyi...
5392150 Optical information reading device
5387924 Method of mitigating the effects of a defective electromechanical...
5385018 Device for transmitting automotive engine driving torque for auto...
5382961 Bistable DMD addressing method
5379678 Hydraulic drive
5379646 Seatback load applying device
5377578 Torque control system
5375417 Method of and means for driving a pneumatic engine
5375418 Controlled convertible top hydraulic lock
5373697 Hydraulic fluid system and dump valve mechanism for a hydrostatic...
5373776 Valve mechanism for booster
5366268 High strength seat back
5363742 Air over oil intensifier
5359854 Actuating unit for hydraulic brake system
5357844 Run-up control for the pressure cheek in a drawing apparatus
5355769 Sequentially operated cylinders with load holding valve integrate...
5355773 Hydraulic system for controlling contact pressure
5353593 Bootstrap hydraulic systems
5353595 Nonstep hydrostatic transmission
5351599 Linear drive device
5349819 Apparatus for generating high pressure water in response to water...
5349464 Nonlinear optical element
5345764 Control valve for bootstrap hydraulic systems
5345855 Reaction disc for a brake booster
5342176 Method and apparatus for measuring piston position in a free pist...
5341244 Zoom lens system
5337650 Booster for brake or clutch
5337170 Quadratic optical processor for reducing multiplicative noise and...
5337186 Transmissive image display device
5335582 Vacuum brake booster
5335585 Master cylinder
5335586 Handle linkage
5335495 Brake valve
5333536 Piston and method of manufacture
5333533 Method and apparatus for controlling an implement
5331812 Traveling speed changeover device for hydraulic excavator
 
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