Inventor · disambiguated record
Charles L. Matheson
Also filed as: MATHESON CHARLES L
8 granted patents·578 citations·filing 1981–1999
91Inventor score
Top patents by PatentIndex Score
8 records- 0193US5662799ASlow release coolant filterFLEETGUARD INC·Filed 1996·Granted Sep 2, 1997·133 cites·27 claims
- 0291USRE37369ESlow release coolant filterFLEETGUARD INC·Filed 1999·Granted Sep 18, 2001·105 cites·37 claims
- 0390US5772873ASlow release coolant filterFLEETGUARD INC·Filed 1997·Granted Jun 30, 1998·89 cites·10 claims
- 0489US5171430APlastic filterFLEETGUARD INC·Filed 1991·Granted Dec 15, 1992·141 cites·19 claims
- 0588USD298051SAir filter housing for mounting on an internal combustion engineCUMMINS ENGINE CO INC·Filed 1986·Granted Oct 11, 1988·28 cites·1 claims
- 0679US4440193AValve assemblyCUMMINS ENGINE CO INC·Filed 1981·Granted Apr 3, 1984·39 cites·8 claims
- 0757US4619677ADisposable air filter assembly and method of making sameCUMMINS ENGINE CO INC·Filed 1985·Granted Oct 28, 1986·24 cites·8 claims
- 0853US4753266AValve assemblyCUMMINS ENGINE CO INC·Filed 1986·Granted Jun 28, 1988·19 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Charles L. Matheson files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →