DP

David E. Plotner

WE Werner: 9 patents #13 of 140Top 10%
Overall (All Time): #542,757 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11885181 Box rail backup and method Thomas W. Parker, Kevin McIntire, Steve Dings, Robert D. Beggs 2024-01-30
7234203 Locking hinge for folding ladder Brett Latimer, Ronald K. Burig, Christine A. Brown, John Fiumefreddo, Roy B. Bendickson +1 more 2007-06-26
7165649 Positioning system for folding ladder and method of installation of folding ladder using positioning system Brett Latimer, Ronald K. Burig, Christine A. Brown, John Fiumefreddo, Roy B. Bendickson +1 more 2007-01-23
6994184 Stowable ladder configured for installation in an opening Brett Latimer, Ronald K. Burig, Christine A. Brown, John Fiumefreddo, Roy B. Bendickson 2006-02-07
6991063 Stowable ladder configured for installation in an opening Brett Latimer, Ronald K. Burig, Christine A. Brown, John Fiumefreddo, Roy B. Bendickson 2006-01-31
6142255 Ladder, member for connecting a rail to a horizontal element of a ladder, and method Edward E. Heald, Richard P. Sulecki, Frederick J. Bartnicki, Mitchell H. Hetrich 2000-11-07
5791439 Ladder, member for connecting a rail to a horizontal element of a ladder, and method, and apparatus and method for holding a washer Edward E. Heald, Kevin McIntire, Richard P. Sulecki, Mitchell H. Hetrich, Frederick J. Bartnicki 1998-08-11
5636706 Ladder, member for connecting a rail to a horizontal element of a ladder, and method Edward E. Heald, Richard P. Sulecki, Frederick J. Bartnicki, Mitchell H. Hetrich 1997-06-10
D372105 Ladder pail shelf 1996-07-23