DS

David P. Smith

Caterpillar: 37 patents #58 of 8,398Top 1%
3M: 8 patents #1,961 of 11,543Top 20%
PI Prince Industries: 6 patents #1 of 6Top 20%
SM Shin Caterpillar Mitsubishi: 4 patents #18 of 184Top 10%
IM Imation: 4 patents #79 of 622Top 15%
Schlumberger Technology: 2 patents #2,609 of 7,293Top 40%
VI Virtek Vision International: 2 patents #2 of 18Top 15%
TL Trw Limited: 1 patents #979 of 2,166Top 50%
AD Analog Devices: 1 patents #1,102 of 1,943Top 60%
AU Analog Devices International Unlimited: 1 patents #275 of 574Top 50%
📍 Kitchener, CA: #5 of 1,348 inventorsTop 1%
Overall (All Time): #32,564 of 4,157,543Top 1%
66
Patents All Time

Issued Patents All Time

Showing 26–50 of 66 patents

Patent #TitleCo-InventorsDate
6769252 Fluid system having variable pressure relief 2004-08-03
6748738 Hydraulic regeneration system 2004-06-15
6699311 Hydraulic quick drop circuit Rudy V. Mills, Robert A. Aarestad, Chad T. Brickner 2004-03-02
6694859 Variable pressure relief valve 2004-02-24
6684636 Electro-hydraulic pump control system 2004-02-03
6681568 Fluid system for two hydraulic circuits having a common source of pressurized fluid 2004-01-27
6651794 Hydro-mechanical combiner 2003-11-25
6631653 System for definable single lever control shift pattern joint Chad T. Brickner, John R. Connolly, Paul Gilbert, Thomas J. Hajek, Jr., Rudy V. Mills 2003-10-14
6572344 Compact pump or motor with internal swash plate Thomas J. Hajek, Jr. 2003-06-03
6564830 Method and apparatus for managing fluid pressure using an accumulator 2003-05-20
6394431 High force feel bumper with low final load 2002-05-28
6279482 Countermeasure apparatus for deploying interceptor elements from a spin stabilized rocket Jane M. Lin 2001-08-28
6224065 Face seal with inner and outer seal retainer members 2001-05-01
6205000 Composite data cartridge drive belt Mary R. Hable, Kam W. Law, Christopher J. Zwettler, R. Galen McCrea, Jr., Jeffrey W. McCutcheon 2001-03-20
6179570 Variable pump control for hydraulic fan drive 2001-01-30
6098491 Control lever assembly with handle lock-out David J. Carlson, Mark R. Coppley, Michael Stuart Johnston 2000-08-08
6098481 High force variable position detent mechanism Rudy V. Mills 2000-08-08
6056294 Self-energizing one piece seal 2000-05-02
6027778 One piece capstan for a tape cartridge Karunasena A. Alahapperuma, Anthony B. Ferguson, David L. Tussey, Saurin J. Shah, Dean E. Sitz +3 more 2000-02-22
5897176 Braking apparatus and method for use with a moving vehicle Paul A. Dvorak, Peter R. Hildner, William Christopher Swick 1999-04-27
5875631 Control system for a hydrostatic transmission 1999-03-02
5875682 Operator controlled electrical output signal device 1999-03-02
5868059 Electrohydraulic valve arrangement 1999-02-09
5819866 Active pitch control for a mobile machine Ronnie L. Satzler 1998-10-13
5809841 Variable position detent mechanism for a control lever 1998-09-22