WD

Warren B. Depperman

CP Cogsdill Tool Products: 8 patents #1 of 17Top 6%
CM Chamberlain Manufacturing: 1 patents #10 of 24Top 45%
Overall (All Time): #589,898 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5921727 Reamer with friction resistant layer and method for forming same 1999-07-13
5568893 Internal welding fixture 1996-10-29
5522124 Roller burnishing apparatus having directly driven, coaxially disposed burnishing head assembly 1996-06-04
5285947 Welding fixture 1994-02-15
5203197 Clamp assembly 1993-04-20
5094435 Flange alignment tool and method William J. Westerman, Timothy C. Dearman 1992-03-10
4890473 Contracting rim clamp William J. Westerman, Philip Gordon Smith 1990-01-02
4580932 Deburring tool 1986-04-08
4241540 Folding screw and rail assembly for a garage door opener 1980-12-30