Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Wondra — 2 Patents

CHChart: 2 patents #19 of 79Top 25%
Montgomery, MN: #6 of 13 inventorsTop 50%
Minnesota: #24,068 of 52,454 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
David Wondra has been granted 2 US patents while listed as an inventor at Chart. The first was granted in 2004 and the most recent in September 2005. David Wondra ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David Wondra in Montgomery, MN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6938581 Supplemental water heater tank and system Timothy Neeser, Thomas J. Shaw, Paul Drube 2005-09-06
6799429 High flow pressurized cryogenic fluid dispensing system Paul Drube, Timothy Neeser, Thomas J. Shaw 2004-10-05