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John Roberts — 28 Patents

GSGan Systems: 11 patents #3 of 24Top 15%

PEPeavey Electronics: 7 patents #5 of 40Top 15%

RHRodel Holdings: 3 patents #34 of 95Top 40%

QLQioptiq Limited: 2 patents #6 of 9Top 70%

RHRohm And Haas Electronic Materials Cmp Holdings: 2 patents #101 of 239Top 45%

Gatineau, CA: #30 of 1,550 inventorsTop 2%

Overall (All Time): #134,628 of 4,157,543Top 4%

28 Patents All Time

John Roberts has been granted 28 US patents while listed as an inventor at Gan Systems. The first was granted in 1989 and the most recent in September 2019. John Roberts ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list John Roberts in Gatineau, QC, CA.

Patents per Year

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10409077	Distributed aperture head up display (HUD)	—	2019-09-10
10290623	Gate input protection for devices and systems comprising high power E-mode GaN transistors	Hugues Lafontaine	2019-05-14
10281655	Field inversion waveguide using micro-prism array	James Babington	2019-05-07
9818692	GaN semiconductor device structure and method of fabrication by substrate replacement	Greg P. Klowak, Cameron MCKNIGHT-MACNEIL	2017-11-14
9692408	Devices and systems comprising drivers for power conversion circuits	Greg P. Klowak	2017-06-27
9660639	Distributed driver circuitry integrated with GaN power transistors	Ahmad Mizan	2017-05-23
9659854	Embedded packaging for devices and systems comprising lateral GaN power transistors	Greg P. Klowak, Ahmad Mizan	2017-05-23
9525413	Power switching systems comprising high power e-mode GaN transistors and driver circuitry	Iain Scott	2016-12-20
9508797	Gallium nitride power devices using island topography	Ahmad Mizan, Girvan Patterson, Greg P. Klowak	2016-11-29
9105560	Devices and systems for power conversion circuits	Greg P. Klowak	2015-08-11
9064947	Island matrixed gallium nitride microwave and power switching transistors	Ahmad Mizan, Girvan Patterson, Greg P. Klowak	2015-06-23
9029866	Gallium nitride power devices using island topography	Ahmad Mizan, Girvan Patterson, Greg P. Klowak	2015-05-12
8791508	High density gallium nitride devices using island topology	Ahmad Mizan, Girvan Patterson, Greg P. Klowak	2014-07-29
6869350	Polishing pads and methods relating thereto	David B. James, Lee Melbourne Cook	2005-03-22	$38,901,000
6843712	Polishing pads and methods relating thereto	David B. James, Lee Melbourne Cook	2005-01-18	$8,730,000
6682402	Polishing pads and methods relating thereto	David B. James, Lee Melbourne Cook	2004-01-27
6515859	Heat sink alignment	Ronald David Goss, Jack C. Sondermeyer	2003-02-04
6349752	Multi-fuel kick back receiver	—	2002-02-26
6293852	Polishing pads and methods relating thereto	David B. James, Lee Melbourne Cook	2001-09-25
6217434	Polishing pads and methods relating thereto	David B. James, Lee Melbourne Cook	2001-04-17
6102087	Multi-fuel bib II	—	2000-08-15
5875825	Multi-fuel bib	—	1999-03-02
5737428	Circuit for providing visual indication of feedback	—	1998-04-07
5652800	Automatic mixer priority circuit	—	1997-07-29
5509080	Bass clipping circuit	—	1996-04-16