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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Dempsey — 4 Patents

COCongoleum: 2 patents #24 of 73Top 35%
Carson City, NV: #83 of 349 inventorsTop 25%
Nevada: #1,969 of 8,397 inventorsTop 25%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Robert Dempsey has been granted 4 US patents while listed as an inventor at Congoleum. The first was granted in 1993 and the most recent in June 2017. Robert Dempsey ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert Dempsey in Carson City, NV, US.

Patents per Year

Patents granted per year, 1993 to 2017Bar chart with a peak of 1 patents in 1993.peak 11993: 1 patents19932002: 1 patents20022009: 1 patents20092017: 1 patents2017

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D788667 Automobile entrance hatch 2017-06-06
7550192 Resilient floor tile Donald C. Ferguson, Andrei Sharygin, Richard Whitehouse 2009-06-23
6413618 Laminated glass floor tile and flooring made therefrom and method for making same Anthony A. Parker, Peter J. Rohrbacher, Scott M. Wootten, John A. Shost, Richard A. Sabo 2002-07-02 $200,000
5206644 System and method for extending the life of aircraft anti-collision lights 1993-04-27