KB

Katherine A. Bergfeld

PR Press-Seal: 4 patents #5 of 13Top 40%
PG Press-Seal Gasket: 2 patents #9 of 17Top 55%
📍 Waterville, OH: #19 of 93 inventorsTop 25%
🗺 Ohio: #13,499 of 73,341 inventorsTop 20%
Overall (All Time): #827,880 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
10563805 Expandable sealing mechanism James W. Skinner, Graham E. Blackwood, Michael R. Miller, John R. Kaczmarczyk 2020-02-18
D814285 Expandable sealing mechanism Graham E. Blackwood, Michael R. Miller, John M. Kaczmarczyk, James W. Skinner 2018-04-03
D813661 Expandable sealing mechanism Graham E. Blackwood, Michael R. Miller, John M. Kaczmarczyk, James W. Skinner 2018-03-27
9644768 Expandable sealing mechanism James W. Skinner, Graham E. Blackwood, Michael R. Miller, John M. Kaczmarczyk 2017-05-09
D752968 Expandable sealing mechanism Graham E. Blackwood, Michael R. Miller, John M. Kaczmarczyk, James W. Skinner 2016-04-05
8839564 Trailer door seal Andrew J. Happel, Myron S. Worley 2014-09-23