RB

Robert Franciszek Barwacz

3M: 2 patents #5,326 of 11,543Top 50%
📍 Lapeer, MI: #207 of 689 inventorsTop 35%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,037,534 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9155661 Corded hearing protective device and method of manufacturing the same — 2015-10-13
8708091 Corded hearing protective device and method of manufacturing the same — 2014-04-29