Inventor · disambiguated record

Karl-Heinz Messner

Also filed as: MESSNER KARL-HEINZ

2 granted patents·100 citations·filing 1990–1997

68Inventor score

Technology areasB01D F01M

Files withMANN & HUMMEL FILTER2

Top patents by PatentIndex Score

2 records

0185US4993517AOil-fill opening for introducing lubricating oil into an internal combustion engineMANN & HUMMEL FILTER·Filed 1990·Granted Feb 19, 1991·57 cites·8 claims
0271US5928511AOil filter with housing drain channelMANN & HUMMEL FILTER·Filed 1997·Granted Jul 27, 1999·43 cites·6 claims

Join the waitlist — get patent alerts

Get an alert when Karl-Heinz Messner 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 →