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David Ruma — 6 Patents

Powell, OH: #91 of 479 inventorsTop 20%
Ohio: #13,600 of 73,341 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
David Ruma has been granted 6 US patents. The first was granted in 2016 and the most recent in February 2025. David Ruma ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list David Ruma in Powell, OH, US.

Patents per Year

Patents granted per year, 2016 to 2025Bar chart with a peak of 1 patents in 2016.peak 12016: 1 patents20162017: 1 patents20172018: 1 patents20182021: 1 patents20212024: 1 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
12229238 Acknowledgment authentication system and method — 2025-02-18
11971971 Acknowledgment authentication system and method — 2024-04-30
11132426 Acknowledgment authentication system and method — 2021-09-28
10108795 Acknowledgment authentication system and method — 2018-10-23
9727718 Acknowledgment authentication system and method — 2017-08-08
9240990 Acknowledgment authentication system and method — 2016-01-19

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