Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert A. Ray — 7 Patents

FDFlexsite Diagnostics: 5 patents #1 of 4Top 25%
BIBeckman Instruments: 1 patents #201 of 431Top 50%
PAPaccar: 1 patents #383 of 678Top 60%
Fullerton, CA: #123 of 1,038 inventorsTop 15%
California: #83,669 of 386,348 inventorsTop 25%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Robert A. Ray has been granted 7 US patents while listed as an inventor at Flexsite Diagnostics. The first was granted in 1980 and the most recent in October 2001. Robert A. Ray ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Robert A. Ray in Fullerton, CA, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6309887 Filter paper treatment for improved diagnostic assays 2001-10-30
6265223 Diagnostic assay 2001-07-24
6258045 Collection device for biological samples and methods of use Robert Stangarone, Julie Peddicord 2001-07-10
6177283 Diagnostic assay 2001-01-23
6036659 Collection device for biological samples and methods of use Robert Stangarone, Julie Peddicord, Raul Sarzo 2000-03-14
D364371 Truck bumper Ronaldo S. Natividad 1995-11-21
4218535 Determination of enzyme substrate concentration 1980-08-19 $1,431,000