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USPTO Patent Rankings Data through Dec 31, 2025
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Robert D. Coyle — 2 Patents

OPOpcon: 1 patents #3 of 11Top 30%
Louisville, KY: #1,280 of 3,201 inventorsTop 40%
Kentucky: #4,451 of 11,577 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Robert D. Coyle has been granted 2 US patents while listed as an inventor at Opcon. The first was granted in 1988 and the most recent in May 1997. Robert D. Coyle ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert D. Coyle in Louisville, KY, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5628901 Vessel for treating liquids William L. Lawrence 1997-05-13
4769147 Oil reclamation apparatus William L. Lawrence, Ronald G. Rose 1988-09-06