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David P. Smith — 66 Patents

Caterpillar: 37 patents #61 of 8,398Top 1%

3M: 8 patents #1,969 of 11,543Top 20%

PIPrince Industries: 6 patents #1 of 6Top 20%

IMImation: 4 patents #79 of 622Top 15%

SMShin Caterpillar Mitsubishi: 4 patents #18 of 184Top 10%

VIVirtek Vision International: 2 patents #2 of 18Top 15%

Schlumberger Technology: 2 patents #2,630 of 7,293Top 40%

ADAnalog Devices: 1 patents #1,242 of 1,990Top 65%

TLTrw Limited: 1 patents #979 of 2,166Top 50%

AUAnalog Devices International Unlimited: 1 patents #581 of 574Top 105%

Kitchener, CA: #5 of 1,348 inventorsTop 1%

Overall (All Time): #32,599 of 4,157,543Top 1%

66 Patents All Time

David P. Smith has been granted 66 US patents while listed as an inventor at Caterpillar. The first was granted in 1984 and the most recent in June 2025. David P. Smith ranks #32,599 of 4,157,543 US inventors in our database (top 0.78%). Patent records list David P. Smith in Kitchener, ON, CA.

Patents per Year

Issued Patents All Time

Showing 1–25 of 66 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12322085	Method and system for inspecting a surface with artificial intelligence assist	Ahmed Elhossini, Mehrdad Bakhtiari	2025-06-03
12320759	Method and system for inspecting a surface with artifical intelligence assist	Ahmed Elhossini	2025-06-03
11242744	Real time flow analysis methods and continuous mass balance and wellbore pressure calculations from real-time density and flow measurements	Bruce E. Smith, Michael B. Smith, Scott A. Grubb	2022-02-08
10942540	Operator controlled electrical output signal device with variable feel and hold feedback and automated calibration and learnable performance optimization	Chun Feng Xia, Lukasz Grzegorz Osikowicz	2021-03-09
10738551	Real time flow analysis methods and continuous mass balance and wellbore pressure calculations from real-time density and flow measurements	Bruce E. Smith, Michael B. Smith, Scott A. Grubb	2020-08-11
10648575	Electro-hydraulic pressure reducing and relieving valve with flow force control for large flow capacity	—	2020-05-12
10444188	Monitoring pipe conditions	Mirjam Zwanenburg, Zhanke Liu, Michelle Torregrossa, Liam Thomas Fairburn ZSOLT	2019-10-15	$21,594,000
10416195	Current sensor and a method of manufacturing a current sensor	Jonathan Ephraim David Hurwitz, David S. Yaney, Petre Minciunescu	2019-09-17	$60,127,000
10073487	Systems and methods for self-contained adjustable spring plunger bumper with high initial load and low final load	Kevin Brown	2018-09-11
9836077	Operator controlled electrical output signal device with variable feel and hold feedback and automated calibration and learnable performance optimization	Chun Feng Xia, Lukasz Grzegorz Osikowicz	2017-12-05
9517783	Modification for a hand truck	—	2016-12-13
9488290	Disc check valve system and method	Kevin P. Stamper	2016-11-08
9387788	Combination trailer	Randy Stroup, Fred P. Smith	2016-07-12
9323283	Operator controlled electrical output signal device with variable feel and hold feedback and automated calibration and learnable performance optimization	Chun Feng Xia, Lukasz Grzegorz Osikowicz	2016-04-26
7757755	System and method for measuring an orientation of a downhole tool	Michael H. Kenison, L. Michael McKee, Robert Bucher, Sarmad Adnan	2010-07-20	$38,224,000
7723979	Integrated energy metering system	Michael A. Ashburn, Jr., Stephen W. Harston, Etienne Gerard Moulin, Shuang Jin, Meghan C. Kaiserman +1 more	2010-05-25	$15,545,000
7658065	Hydraulic system having in-sump energy recovery device	Igor Strashny, Daniel T. Mather	2010-02-09	$36,205,000
7631738	Fluidly actuated sprag	Eric Lauterbach, Daniel T. Mather, Jonathan Lewis Buelow	2009-12-15	$102,141,000
7497156	Fluid motor	Eric Lauterbach, Daniel T. Mather, Jonathan Lewis Buelow	2009-03-03	$14,489,000
7444809	Hydraulic regeneration system	Daniel T. Mather	2008-11-04	$29,377,000
7293579	Poppet valve arrangements	James A. Aardema, Rudy V. Mills	2007-11-13	$25,245,000
7258058	Metering valve with integral relief and makeup function	Daniel T. Mather, Wayne W. Lark	2007-08-21	$52,438,000
7240604	Electro-hydraulic metering valve with integral flow control	Daniel T. Mather	2007-07-10	$61,387,000
6935114	System and method for starting an engine	Thomas J. Hajek, Jr.	2005-08-30	$23,432,000
6848475	Electro-hydraulic valve and system	—	2005-02-01	$24,570,000