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USPTO Patent Rankings Data through Dec 31, 2025
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Eric C. Springer — 11 Patents

CJCopper John: 9 patents #1 of 1Top 100%
NANovartis Tiergesundheit Ag: 1 patents #6 of 18Top 35%
Canton, SD: #1 of 19 inventorsTop 6%
South Dakota: #129 of 2,308 inventorsTop 6%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
Eric C. Springer has been granted 11 US patents while listed as an inventor at Copper John. The first was granted in 2002 and the most recent in November 2024. Eric C. Springer ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Eric C. Springer in Canton, SD, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
12140398 Archery trigger adjuster and method for archery release devices 2024-11-12
11994359 Archery hook engager and method for archery release devices 2024-05-28
11262154 Archery release device and method operable to generate a pulling force 2022-03-01
10746501 Archery release device and method 2020-08-18
10641578 Trigger-based archery release device and method 2020-05-05
10281231 Archery release device and method 2019-05-07
9364527 Bovine vaccines and methods 2016-06-14
9261323 Bowstring release having a safety device 2016-02-16
9027540 Bowstring release 2015-05-12
6508005 Solo plane pin head bow sight 2003-01-21
6446347 Always normal bow sight 2002-09-10