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USPTO Patent Rankings Data through Dec 31, 2025
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Troy E. Hoover — 6 Patents

APAppleton Papers: 6 patents #12 of 114Top 15%
Appleton, WI: #379 of 1,506 inventorsTop 30%
Wisconsin: #7,934 of 40,088 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Troy E. Hoover has been granted 6 US patents while listed as an inventor at Appleton Papers. The first was granted in 1980 and the most recent in August 1991. Troy E. Hoover ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Troy E. Hoover in Appleton, WI, US.

Patents per Year

Patents granted per year, 1980 to 1991Bar chart with a peak of 2 patents in 1980.peak 21980: 2 patents19801981: 1 patents19811982: 1 patents19821985: 1 patents19851991: 1 patents1991

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5041547 Chromogenic substituted 4,7-diazaphthalides Robert E. Miller 1991-08-20
4520379 Thermally-responsive record material Kenneth D. Glanz 1985-05-28
4334072 Lactone compounds containing an indolizine radical William Joshua Becker, Sheldon Farber 1982-06-08
4275206 Lactone compounds containing an indolizine radical William Joshua Becker, Sheldon Farber 1981-06-23
4242513 Lactone compounds containing a heterocyclic radical Sheldon Farber, William Joshua Becker 1980-12-30
4232887 Lactone compounds containing an indolizine radical William Joshua Becker, Sheldon Farber 1980-11-11