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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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James C. Schaefer — 7 Patents

UNUnknown: 2 patents #12,644 of 83,584Top 20%
Rockford, MI: #54 of 287 inventorsTop 20%
Michigan: #13,705 of 86,293 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
James C. Schaefer has been granted 7 US patents while listed as an inventor at Unknown. The first was granted in 2013 and the most recent in August 2023. James C. Schaefer ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list James C. Schaefer in Rockford, MI, US.

Patents per Year

Patents granted per year, 2013 to 2023Bar chart with a peak of 2 patents in 2023.peak 22013: 1 patents20132014: 1 patents20142018: 1 patents20182019: 1 patents20192022: 1 patents20222023: 2 patents2023

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
11737470 Respiration ranking in controlled atmosphere rooms Daniel E. Boozer 2023-08-29
11549696 Dehumidification system with variable capacity Michael C. Laraway, Thomas L. Cooper, Nicholas R. Hankamp 2023-01-10
11484038 Respiration ranking in controlled atmosphere rooms Daniel E. Boozer 2022-11-01
10184580 Pressure relief system for controlled atmosphere room Darius L. Warne 2019-01-22
10143210 Dynamic control system and method for controlled atmosphere room David J. Bishop 2018-12-04
8739694 Dynamic control system and method for controlled atmosphere room David J. Bishop 2014-06-03
8551215 System and method of operation for controlled atmosphere storage 2013-10-08