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USPTO Patent Rankings Data through Dec 31, 2025
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Bruce S. Schaeffer — 2 Patents

FRFrick: 2 patents #5 of 15Top 35%
Waynesboro, PA: #18 of 80 inventorsTop 25%
Pennsylvania: #30,766 of 74,527 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Bruce S. Schaeffer has been granted 2 US patents while listed as an inventor at Frick. The first was granted in 1982 and the most recent in September 1983. Bruce S. Schaeffer ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Bruce S. Schaeffer in Waynesboro, PA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4402189 Refrigeration system condenser heat recovery at higher temperature than normal condensing temperature 1983-09-06
4325226 Refrigeration system condenser heat recovery at higher temperature than normal condensing temperature 1982-04-20