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USPTO Patent Rankings Data through Dec 31, 2025
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Patric N. Chamberlain — 3 Patents

SGSauer Gmbh: 3 patents #13 of 59Top 25%
Ankeny, IA: #160 of 408 inventorsTop 40%
Iowa: #4,706 of 15,303 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Patric N. Chamberlain has been granted 3 US patents while listed as an inventor at Sauer Gmbh. The first was granted in 1993 and the most recent in May 1994. Patric N. Chamberlain ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Patric N. Chamberlain in Ankeny, IA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5307731 Housing system for hydraulic units Jeffrey C. Hansell 1994-05-03
5241872 Swashplate centering mechanism for a variable displacement pump Michael Betz 1993-09-07
5211064 Power take-off drive Michael Betz 1993-05-18