Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Brian Canfield — 20 Patents

HP: 19 patents #855 of 7,018Top 15%
MTMicro Therapeutics: 1 patents #40 of 70Top 60%
San Diego, CA: #2,128 of 23,606 inventorsTop 10%
California: #29,208 of 386,348 inventorsTop 8%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Brian Canfield has been granted 20 US patents. The first was granted in 1994 and the most recent in March 2006. Brian Canfield ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Brian Canfield in San Diego, CA, US.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7018365 Threaded syringe with quick stop Brian Michael Strauss, Brock Smith, Amanda Conner, Douglas Ray Hayman, Ed Olsen 2006-03-28
6241347 Inkjet printing with replaceable set of ink-related components (printhead/service module/ink supply) for each color of ink Rick Becker, Jesus Garcia, Doug Watson, Don Boutin, Eric Joseph Johnson +4 more 2001-06-05 $39,724,000
6199973 Storage container for inkjet cartridges having removable capping means and a method for storing inkjet cartridges Jordi Bartolome, Jorge Menendez, Jesus Garcia, Joan Carles Vives 2001-03-13 $93,210,000
6193353 Translational inkjet servicing module with multiple functions Joan Carles Vives, Martin Urrutia, Jesus Garcia Maza, Richard A. Becker 2001-02-27 $45,006,000
6189995 Manually replaceable printhead servicing module for each different inkjet printhead Jesus Garcia, Joan Carles Vives, Martin Urrutia, Eric Joseph Johnson 2001-02-20 $47,027,000
6179401 Multi-component installation feedback system for replacement print cartridges, valve holders, and service station cassettes for on board ink delivery systems replenishment Ronald D. Stephens, Jr., Don Boutin, Manel Martinez, Amy Van Liew 2001-01-30 $60,425,000
6139135 Inkjet printing with replaceable set of ink-related components (printhead/service module/ink supply) for each color of ink Rick Becker, Jesus Garcia, Doug Watson, Don Boutin, Eric Joseph Johnson +4 more 2000-10-31 $41,517,000
6076913 Optical encoding of printhead service module Joan Manel Garcia, Jesus Garcia, Joan Carles Vives, Gonzalo Gaston 2000-06-20 $73,349,000
D423564 Printhead service station Jesus Garcia, Joan Carles Vives 2000-04-25
6042216 Replaceable printhead servicing module with multiple functions (wipe/cap/spit/prime) Jesus Garcia, Joan Carles Vives, Martin Urrutia 2000-03-28 $80,162,000
5726690 Control of ink drop volume in thermal inkjet printheads by varying the pulse width of the firing pulses Jaime H. Bohorquez, Clayton L. Holstun, Susan Hajaran Tousi, Kenneth J. Courian, Frank Drogo 1998-03-10 $39,105,000
5682185 Energy measurement scheme for an ink jet printer John M. Wade 1997-10-28 $40,851,000
5673069 Method and apparatus for reducing the size of drops ejected from a thermal ink jet printhead Clayton L. Holstun, King-Wah W. Yeung 1997-09-30 $46,484,000
5600351 Inkjet printer with increased print resolution in the carriage scan axis Clayton L. Holstun, Ronald A. Askeland, Frank Drogo 1997-02-04 $36,041,000
5541625 Method for increased print resolution in the carriage scan axis of an inkjet printer Clayton L. Holstun, Ronald A. Askeland, Frank Drogo 1996-07-30 $37,202,000
5528269 Servicing a newly-installed ink pen to eliminate uneven print quality without excessive wasting of ink Frank Drogo, Ronald A. Askeland 1996-06-18 $41,168,000
5526027 Thermal turn on energy test for an inkjet printer John M. Wade, Kurt K. Andersen, Hanno Ix 1996-06-11 $54,095,000
5455613 Thin film resistor printhead architecture for thermal ink jet pens David A. Johnson, John Paul Harmon 1995-10-03 $26,559,000
5428376 Thermal turn on energy test for an inkjet printer John M. Wade, Kurt K. Andersen, Hanno Ix 1995-06-27 $17,046,000
5342133 Paper moving system for a printer/plotter 1994-08-30 $19,240,000