SS

Steven J. Sprotberry

BC Btm Company: 18 patents #2 of 23Top 9%
📍 Marysville, MI: #4 of 70 inventorsTop 6%
🗺 Michigan: #4,680 of 86,293 inventorsTop 6%
Overall (All Time): #253,030 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
11446726 Metal fastening die assembly Hans-Werner Fisch 2022-09-20
10328481 Clinching punch and apparatus Glenn R. Koenigbauer, Paul D. Boyes 2019-06-25
9931720 Method of using a pierce nut insertion tool Edwin G. Sawdon, Stephen E. Sawdon, Brian D. Petit 2018-04-03
9421599 Clinch clamp Stephen E. Sawdon, Brian D. Petit 2016-08-23
8881364 Pierce nut insertion tool Edwin G. Sawdon, Stephen E. Sawdon, Brian D. Petit 2014-11-11
7694399 Sheet fastening apparatus and method Edwin G. Sawdon 2010-04-13
7685925 Intensifying cylinder Edwin G. Sawdon, Brian D. Petit 2010-03-30
D557128 Button shape for clinch joint Edwin G. Sawdon 2007-12-11
7263831 Air-to-oil intensifying cylinder Edwin G. Sawdon 2007-09-04
7194859 Intensifier Edwin G. Sawdon, Brian D. Petit 2007-03-27
7003861 Tool assembly employing a flexible retainer Edwin G. Sawdon, Stephen E. Sawdon 2006-02-28
6996984 Air-to-oil intensifying cylinder Edwin G. Sawdon 2006-02-14
6785959 Tool assembly employing a flexible retainer Edwin G. Sawdon, Stephen E. Sawdon 2004-09-07
6757951 Composite urethane stripper for metal joining apparatus Edwin G. Sawdon 2004-07-06
6430795 Composite urethane stripper for metal joining apparatus Edwin G. Sawdon 2002-08-13
6059277 Retracting power clamp Edwin G. Sawdon 2000-05-09
5938259 Pad for universal gripper Edwin G. Sawdon, Dean J. Kruger 1999-08-17
5853211 Universal gripper Edwin G. Sawdon, Dean J. Kruger 1998-12-29