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Robert Grey — 4 Patents

FPFiltronic Plc: 2 patents #3 of 12Top 25%
RLRfmd (Uk) Limited: 1 patents #6 of 11Top 55%
Hunlock Creek, PA: #4 of 8 inventorsTop 50%
Pennsylvania: #19,360 of 74,527 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Robert Grey has been granted 4 US patents while listed as an inventor at Filtronic Plc. The first was granted in 1999 and the most recent in January 2012. Robert Grey ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert Grey in Hunlock Creek, PA, US.

Patents per Year

Patents granted per year, 1999 to 2012Bar chart with a peak of 1 patents in 1999.peak 11999: 1 patents19992009: 1 patents20092011: 1 patents20112012: 1 patents2012

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8101973 Transistor Matthew Francis O'Keefe, Michael Charles Clausen, Richard Alun Davies 2012-01-24
7868356 Compound semiconductor substrate for a field effect transistor Matthew Francis O'Keefe, Michael Charles Clausen, Richard Alun Davies 2011-01-11
7538365 Field effect transistor with aluminum and phosphorus etch stop layer Matthew Francis O'Keefe, Michael Charles Clausen, Richard Alun Davies 2009-05-26
D404143 Swimming pool escape ramp for animals — 1999-01-12

Frequent Collaborators

Matthew Francis O'Keefe3 shared
Michael Charles Clausen3 shared
Richard Alun Davies3 shared

Nearby-Ranked Inventors

Jagadeesh Kandasamy4
Ross CABOT4
George Ueda4
Franz A. Gruswitz4
Tommy Glimberg4
Vinayakaraddy Gulabal4
Sandra Bittorf4
Aviel FOGEL4
Eric Matthew Walton4