Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Barry Eugene Heldman — 2 Patents

3M: 2 patents #5,350 of 11,543Top 50%
Cottage Grove, MN: #176 of 362 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
Barry Eugene Heldman has been granted 2 US patents while listed as an inventor at 3M. The first was granted in 1997 and the most recent in September 2002. Barry Eugene Heldman ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Barry Eugene Heldman in Cottage Grove, MN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6448353 Continuous process for the production of controlled architecture materials James M. Nelson, Jeffrey Jacob Cernohous, Michael J. Annen, James R. McNerney, Robert W. Ferguson +1 more 2002-09-10 $13,722,000
5644007 Continuous process for the production of poly(1-alkenes) Robert S. Davidson, Robert W. Ferguson, Timothy J. Diekmann, Anthony Robert Maistrovich, James A. Higgins +1 more 1997-07-01 $13,401,000