DH

Douglas Wade Heimer

RC Rawlings Sporting Goods Company: 3 patents #27 of 82Top 35%
📍 Caledonia, MN: #7 of 15 inventorsTop 50%
🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%
Overall (All Time): #1,322,250 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
12251608 Ball bats with inner barrel structures Frederic ST-LAURENT, Michael Haas, Ian Montgomery, Rebecca S. O'Hara, Linda Hunt 2025-03-18
9585433 Fiber reinforced helmet Matthew V. Vacek, Biju Mathew, Scott Jeffrey Sorensen 2017-03-07
D697269 Helmet Matthew V. Vacek, Biju Mathew, Scott Jeffrey Sorenson 2014-01-07