CM

Charles L. Matheson

CE Cummins Engine: 4 patents #79 of 765Top 15%
FL Fleetguard: 4 patents #33 of 210Top 20%
Overall (All Time): #665,917 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
RE37369 Slow release coolant filter R. Douglas Hudgens 2001-09-18
5772873 Slow release coolant filter R. Douglas Hudgens 1998-06-30
5662799 Slow release coolant filter R. Douglas Hudgens 1997-09-02
5171430 Plastic filter Donald W. Beach, Udo E. Holzhausen, Lawrence B. Feldhaus, Monroe L. Newton, Steve F. Robbins +1 more 1992-12-15
D298051 Air filter housing for mounting on an internal combustion engine Emilio Ambasz 1988-10-11
4753266 Valve assembly Steven F. Robbins, John R. Smith 1988-06-28
4619677 Disposable air filter assembly and method of making same Preston Lane, James V. Dieringer, Emilio Ambafz 1986-10-28
4440193 Valve assembly 1984-04-03