DD

David G. Duff

Google: 18 patents #1,160 of 22,993Top 6%
PI Palo Alto Research Center Incorporated: 17 patents #103 of 776Top 15%
Xerox: 7 patents #1,771 of 8,622Top 25%
Tesla: 2 patents #322 of 838Top 40%
SO Solfocus: 1 patents #8 of 19Top 45%
📍 Mountain View, CA: #296 of 11,022 inventorsTop 3%
🗺 California: #9,121 of 386,348 inventorsTop 3%
Overall (All Time): #62,200 of 4,157,543Top 2%
46
Patents All Time

Issued Patents All Time

Showing 26–46 of 46 patents

Patent #TitleCo-InventorsDate
8360423 Transport for printing systems David K. Biegelsen, Lars-Erik Swartz, Ashish Pattekar 2013-01-29
8282097 Transport for printing systems David K. Biegelsen, Erik L. Swartz, Ashish Pattekar 2012-10-09
8247097 Method of controlling battery pack humidity utilizing an active reactivation system Jeffrey C. Weintraub, Gregory B. Arcenio 2012-08-21
8042807 Transport for printing systems David K. Biegelsen, Erik L. Swartz, Ashish Pattekar 2011-10-25
8023866 Powdered toner direct marking apparatus Meng H. Lean, Shu Chang, Baomin Xu, Karl A. Littau 2011-09-20
7954449 Wiring-free, plumbing-free, cooled, vacuum chuck Craig Eldershaw 2011-06-07
7945346 Module identification method and system for path connectivity in modular systems David K. Biegelsen, Bryan T. Preas, Markus P. J. Fromherz, Craig Eldershaw, Lee Ackerson 2011-05-17
7931269 Rotational jam clearance apparatus David K. Biegelsen, Lars-Erik Swartz 2011-04-26
7918453 Rotational jam clearance apparatus David K. Biegelsen, Lars-Erik Swartz 2011-04-05
7885592 Rotary operated mechanism for retracting paper pathways of printers Gregory P. Schmitz 2011-02-08
7811692 Micro-machined fuel cells Raj B. Apte, Christian G. Van de Walle, Jeng Ping Lu, Alberto Salleo, Stephen D. White 2010-10-12
7624981 Universal variable pitch interface interconnecting fixed pitch sheet processing machines David K. Biegelsen, Lars-Erik Swartz 2009-12-01
7459225 Micro-machined fuel cells Raj B. Apte, Christian G. Van de Walle, Jeng Ping Lu, Alberto Salleo, Stephen D. White 2008-12-02
7185888 Rotational jam clearance apparatus David K. Biegelsen, Lars-Erik Swartz 2007-03-06
7108260 Flexible director paper path module David K. Biegelsen, Lars-Erik Swartz, Mark H. Yim 2006-09-19
6842246 Six degree of freedom position ranging Kimon Roufas, Ying Zhang, Mark H. Yim, Craig Eldershaw 2005-01-11
6605914 Robotic toy modular system Mark H. Yim, Samuel B. Homans, Kimon Roufas, John Suh 2003-08-12
6603281 High mechanical advantage ratcheting apparatus Mark H. Yim 2003-08-05
6575802 Robotic toy modular system with distributed program Mark H. Yim, Samuel B. Homans, Kimon Roufas, John Suh 2003-06-10
6454624 Robotic toy with posable joints Mark H. Yim, Samuel B. Homans, Kimon Roufas, John Suh 2002-09-24
6439081 Harmonic friction drive 2002-08-27