DE

David P. Engvall

IT Irwin Industrial Tool: 19 patents #7 of 165Top 5%
BD Black & Decker: 2 patents #1,029 of 2,138Top 50%
FI Figgie Inernational: 1 patents #55 of 147Top 40%
NT National Institute Of Standards And Technology: 1 patents #8 of 107Top 8%
Overall (All Time): #134,800 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 25 most recent of 28 patents

Patent #TitleCo-InventorsDate
12290864 Power tool chuck Matthew F. Stanton 2025-05-06
11148209 Power tool chuck Matthew F. Stanton 2021-10-19
10357874 Apparatus and method for a storage container with integrated table Stephen Pennington, Michael Reedy, Adam Dudycha, Jose Cordero Santiago 2019-07-23
9789552 Saw blade and saw blade tooth construction Craig Davidson 2017-10-17
9533400 Locking pliers Robert L. Aldredge, Michael Murray Bogart, Daniel J. Schaefer 2017-01-03
8776646 Locking pliers Thomas M. Chervenak 2014-07-15
8656813 Locking pliers Robert L. Aldredge, Michael Murray Bogart, Daniel J. Schaefer 2014-02-25
8122792 Self-adjusting locking pliers Thomas M. Chervenak 2012-02-28
D651060 Locking pliers jaw Thomas M. Chervenak, Brett Lucus 2011-12-27
8056451 Locking pliers Thomas M. Chervenak 2011-11-15
D635427 Locking pliers jaw Thomas M. Chervenak, Brett Lucus 2011-04-05
7861622 Locking pliers Thomas M. Chervenak 2011-01-04
7726217 Self-adjusting locking pliers Thomas M. Chervenak 2010-06-01
7509895 Self-adjusting locking pliers Thomas M. Chervenak 2009-03-31
7472632 Locking pliers Thomas M. Chervenak 2009-01-06
7293485 Quick adjusting pliers Jeffery L. Ditzler, Gene L. Tyser 2007-11-13
D543812 Groovelock tool James Michael Burry 2007-06-05
D535542 Tool grip Thomas M. Chervenak 2007-01-23
D535173 Tool grip Thomas M. Chervenak 2007-01-16
D535172 Tool grip Thomas M. Chervenak 2007-01-16
7100480 Quick adjusting pliers Jeffery L. Ditzler, Gene L. Tyser 2006-09-05
7089832 Quick adjusting pliers Jeffery L. Ditzler, Gene L. Tyser 2006-08-15
7040201 Quick adjusting pliers Jeffery L. Ditzler, Gene L. Tyser 2006-05-09
6439341 Apparatus for monitoring loading of a lift Stanley Sumsion 2002-08-27
6327791 Chain code position detector Richard J. Norcross, W. Robert Bunch 2001-12-11