John R. Pies — 13 Patents at Compaq Computer

John R. Pies has been granted 13 US patents while listed as an inventor at Compaq Computer. The first was granted in 1991 and the most recent in April 1997. John R. Pies ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list John R. Pies in Dallas, TX, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5621442	Enhanced UU type ink jet printheads	Donald J. Hayes, David B. Wallace	1997-04-15	$59,677,000
5554247	Method of manufacturing a high density ink jet printhead array	David B. Wallace, Donald J. Hayes	1996-09-10	$78,708,000
5506034	Workpiece manufactured by a film coated passivation process	Donald J. Hayes	1996-04-09	$29,316,000
5481285	Ink jet printhead manufactured by a film coated passivation process	Donald J. Hayes	1996-01-02	$29,958,000
5462600	Apparatus for film coated passivation of ink channels in ink jet printhead	—	1995-10-31	$34,124,000
5433809	Method of manufacturing a high density ink jet printhead	David B. Wallace, Donald J. Hayes	1995-07-18	$60,615,000
5406319	Enhanced U type ink jet printheads	Donald J. Hayes, David B. Wallace	1995-04-11	$25,586,000
5402162	Integrated multi-color ink jet printhead	Daniel R. Fusting, David B. Wallace, Donald J. Hayes	1995-03-28	$27,252,000
5400064	High density ink jet printhead with double-U channel actuator	David B. Wallace, Donald J. Hayes	1995-03-21	$80,255,000
5334415	Method and apparatus for film coated passivation of ink channels in ink jet printhead	Donald J. Hayes	1994-08-02	$16,115,000
5235352	High density ink jet printhead	David B. Wallace, Donald J. Hayes	1993-08-10	$45,950,000
5227813	Sidewall actuator for a high density ink jet printhead	David B. Wallace, Donald J. Hayes	1993-07-13	$39,212,000
5053100	Method of making apparatus for dispensing small amounts of fluids	Donald J. Hayes	1991-10-01

John R. Pies — 13 Patents

Issued Patents All Time

Patent Widget