Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Circle Seal Controls — 6 Patents

Rank (All Time): #85,116 of 105,732Top 85%
8 inventors
6 Patents All Time

Patents per Year

Patents granted per year, 1992 to 2008Bar chart with a peak of 1 patents in 1992.peak 11992: 1 patents19921993: 1 patents19931998: 1 patents19982002: 1 patents20022005: 1 patents20052008: 1 patents2008

Top Inventors at Circle Seal Controls All Time

Showing 1–8 of 8 inventors

RankNamePatents
1 Mark Shalkevich 2
2 David P. Myers 1
2 David Nguyen 1
2 Donald R. Gneiding 1
2 Oscar J. Peterson 1
2 Thao Hoang 1
2 Yen Chuh 1
2 Timothy R. Geuy 1