Keefe; Brian J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Keefe; Brian J..The latest application filed is for "fluid identification via electrochemical labels".
Company Profile
6.42.18
- Keefe; Brian J. - San Diego CA
- Keefe; Brian J. - La Jolla CA
- Keefe; Brian J - La Jolla CA
- Keefe; Brian J. - LaJolla CA
Patent Activity
| Patent | Date |
|---|---|
| Fluid Identification Via Electrochemical Labels App 20220065815 - Woodford; Tod ; et al. | 2022-03-03 |
| Electrode Pairs On Either Side Of Microfluidic Channels App 20220062901 - Keefe; Brian J. ; et al. | 2022-03-03 |
| Inkjet printing method and apparatus Grant 11,186,099 - Zhou , et al. November 30, 2 | 2021-11-30 |
| Rapid Thermal Cycling App 20210322991 - HAMMERSTAD; Diane ; et al. | 2021-10-21 |
| Inkjet Printing Method And Apparatus App 20200164661 - Zhou; Zhang-Lin ; et al. | 2020-05-28 |
| Dual regulator print module Grant 10,654,275 - Keefe , et al. | 2020-05-19 |
| Inkjet Printing Method And Apparatus App 20200140711 - ZHOU; Zhang-Lin ; et al. | 2020-05-07 |
| Dual regulator print module Grant 10,507,662 - Keefe , et al. Dec | 2019-12-17 |
| Dual Regulator Print Module App 20190111687 - Keefe; Brian J. ; et al. | 2019-04-18 |
| Dual regulator print module Grant 10,179,455 - Keefe , et al. Ja | 2019-01-15 |
| Dual Regulator Print Module App 20190001686 - Keefe; Brian J. ; et al. | 2019-01-03 |
| Servicing a printhead of a printer Grant 9,931,847 - Wagner , et al. April 3, 2 | 2018-04-03 |
| Dual Regulator Print Module App 20170313088 - Keefe; Brian J. ; et al. | 2017-11-02 |
| Dual regulator print module Grant 9,724,926 - Keefe , et al. August 8, 2 | 2017-08-08 |
| Servicing A Printhead Of A Printer App 20170217189 - Wagner; Jeffrey Allen ; et al. | 2017-08-03 |
| Dual Regulator Print Module App 20130169710 - Keefe; Brian J. ; et al. | 2013-07-04 |
| Ink-jet printhead and method for producing the same Grant 7,048,359 - Keefe , et al. May 23, 2 | 2006-05-23 |
| Substrate for fluid ejection devices Grant 6,997,540 - Horvath , et al. February 14, 2 | 2006-02-14 |
| Method of forming substrate with fluid passage supports Grant 6,880,246 - Horvath , et al. April 19, 2 | 2005-04-19 |
| Electrical circuit for printhead assembly Grant 6,843,552 - McElfresh , et al. January 18, 2 | 2005-01-18 |
| Substrate for fluid ejection devices App 20040100522 - Horvath, Janis ; et al. | 2004-05-27 |
| Substrate for fluid ejection devices Grant 6,705,705 - Horvath , et al. March 16, 2 | 2004-03-16 |
| Method of forming substrate with fluid passage supports App 20030231229 - Horvath, Janis ; et al. | 2003-12-18 |
| Ink-jet printhead and method for producing the same Grant 6,659,596 - Keefe , et al. December 9, 2 | 2003-12-09 |
| Ink-jet printhead and method for producing the same App 20030210302 - Keefe, Brian J. ; et al. | 2003-11-13 |
| Electrical circuit for printhead assembly App 20030202047 - McElfresh, David ; et al. | 2003-10-30 |
| Electrical circuit for wide-array inkjet printhead assembly Grant 6,557,976 - McElfresh , et al. May 6, 2 | 2003-05-06 |
| Inkjet printhead assembly having planarized mounting layer for printhead dies Grant 6,543,880 - Akhavain , et al. April 8, 2 | 2003-04-08 |
| Substrate for fluid ejection devices App 20030007034 - Horvath, Janis ; et al. | 2003-01-09 |
| Inkjet printhead assembly with hybrid carrier for printhead dies Grant 6,464,333 - Scheffelin , et al. October 15, 2 | 2002-10-15 |
| Electrical Circuit For Wide-array Inkjet Printhead Assembly App 20020109751 - McElfresh, David ; et al. | 2002-08-15 |
| Hybrid carrier for wide-array inkjet printhead assembly Grant 6,431,683 - Ho , et al. August 13, 2 | 2002-08-13 |
| Coplanar mounting of printhead dies for wide-array inkjet printhead assembly Grant 6,409,307 - Akhavain , et al. June 25, 2 | 2002-06-25 |
| Electrical connection for wide-array inkjet printhead assembly with hybrid carrier for printhead dies App 20020051036 - Scheffelin, Joseph E. ; et al. | 2002-05-02 |
| Electrical connection for wide-array inkjet printhead assembly with hybrid carrier for printhead dies Grant 6,341,845 - Scheffelin , et al. January 29, 2 | 2002-01-29 |
| Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer Grant 6,332,677 - Steinfield , et al. December 25, 2 | 2001-12-25 |
| Ink-jet printhead and method of producing same Grant 6,328,428 - Keefe , et al. December 11, 2 | 2001-12-11 |
| Print cartridge coupling and reservoir assembly for use in an inkjet printing system with an off-axis ink supply Grant 6,273,560 - Keefe , et al. August 14, 2 | 2001-08-14 |
| Transition metal carbide films for applications in ink jet printheads Grant 6,209,991 - Regan , et al. April 3, 2 | 2001-04-03 |
| Fluidic adapter for use with an inkjet print cartridge having an internal pressure regulator Grant 6,188,417 - Keefe , et al. February 13, 2 | 2001-02-13 |
| Structure to effect adhesion between substrate and ink barrier in ink jet printhead Grant 6,155,674 - Figueredo , et al. December 5, 2 | 2000-12-05 |
| Bubble tolerant manifold design for inkjet cartridge Grant 6,003,986 - Keefe December 21, 1 | 1999-12-21 |
| Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer Grant 5,984,464 - Steinfield , et al. November 16, 1 | 1999-11-16 |
| Ink delivery system for an inkjet printhead Grant 5,953,029 - Keefe , et al. September 14, 1 | 1999-09-14 |
| Reliable high performance drop generator for an inkjet printhead Grant 5,946,012 - Courian , et al. August 31, 1 | 1999-08-31 |
| Ink delivery system for an inkjet pen having an automatic pressure regulation system Grant 5,880,748 - Childers , et al. March 9, 1 | 1999-03-09 |
| Reliable high performance drop generator for an inkjet printhead Grant 5,874,974 - Courian , et al. February 23, 1 | 1999-02-23 |
| Compact inkjet substrate with centrally located circuitry and edge feed ink channels Grant 5,648,804 - Keefe , et al. July 15, 1 | 1997-07-15 |
| Inkjet printhead architecture for high speed and high resolution printing Grant 5,648,805 - Keefe , et al. July 15, 1 | 1997-07-15 |
| Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer Grant 5,648,806 - Steinfield , et al. July 15, 1 | 1997-07-15 |
| High density nozzle array for inkjet printhead Grant 5,638,101 - Keefe , et al. June 10, 1 | 1997-06-10 |
| Edge feed ink delivery thermal inkjet printhead structure and method of fabrication Grant 5,635,966 - Keefe , et al. June 3, 1 | 1997-06-03 |
| Ink delivery method for an inkjet print cartridge Grant 5,625,396 - Keefe , et al. April 29, 1 | 1997-04-29 |
| Inkjet printhead architecture for high frequency operation Grant 5,604,519 - Keefe , et al. February 18, 1 | 1997-02-18 |
| Inkjet printhead architecture for high speed ink firing chamber refill Grant 5,563,642 - Keefe , et al. October 8, 1 | 1996-10-08 |
| Inkjet printhead with improved seal arrangement Grant 5,450,113 - Childers , et al. * September 12, 1 | 1995-09-12 |
| Ink delivery system for an inkjet printhead Grant 5,278,584 - Keefe , et al. January 11, 1 | 1994-01-11 |
| Control of energy to thermal inkjet heating elements Grant 5,187,500 - Bohorquez , et al. February 16, 1 | 1993-02-16 |
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