Inventor · disambiguated record
Michael Kaufmann
Also filed as: KAUFMANN MICHAEL · KAUFMANN MICHAEL A
59 granted patents·9 pending applications·474 citations·filing 1975–2025
98Inventor score
Files withMANN & HUMMEL GMBH49KAUFMANN MICHAEL5BENTELER STEEL TUBE GMBH4ACKERMANN STEFFEN1AGFA HEALTHCARE1
Top patents by PatentIndex Score
68 records- 0196US10337471B2Filter and filter cartridgeMANN & HUMMEL GMBH·Filed 2016·Granted Jul 2, 2019·9 cites·28 claims
- 0296US10245541B2Air filter system, air filter element and method for exchanging an air filter elementMANN & HUMMEL GMBH·Filed 2016·Granted Apr 2, 2019·14 cites·12 claims
- 0395US9254457B2Air filter system, air filter element and method for exchanging an air filter elementMANN & HUMMEL GMBH·Filed 2013·Granted Feb 9, 2016·25 cites·14 claims
- 0494US9358489B2Air filter system, air filter element and method for exchanging an air filter elementMANN & HUMMEL GMBH·Filed 2013·Granted Jun 7, 2016·19 cites·16 claims
- 0594US5779242AMethod for players to play a tournament of games where game scores are obtainedBOYD GAMING CORP·Filed 1997·Granted Jul 14, 1998·161 cites·30 claims
- 0693US11311890B2Filter deviceMANN & HUMMEL GMBH·Filed 2019·Granted Apr 26, 2022·6 cites·16 claims
- 0793US8920530B2Filter element and filter systemRUHLAND KLAUS-DIETER·Filed 2010·Granted Dec 30, 2014·28 cites·9 claims
- 0892US10961957B2Filter and filter cartridgeMANN & HUMMEL GMBH·Filed 2019·Granted Mar 30, 2021·4 cites·13 claims
- 0992US10337472B2Filter and filter cartridgeMANN & HUMMEL GMBH·Filed 2016·Granted Jul 2, 2019·4 cites·25 claims
- 1091US10865749B2Filter and filter cartridgeMANN & HUMMEL GMBH·Filed 2019·Granted Dec 15, 2020·3 cites·30 claims
- 1191US9511317B2Air filter system and air filter element for an air filter systemMANN & HUMMEL GMBH·Filed 2014·Granted Dec 6, 2016·8 cites·17 claims
- 1290US9587598B2Filter housing and filter assemblyMANN & HUMMEL GMBH·Filed 2014·Granted Mar 7, 2017·8 cites·23 claims
- 1390US9457308B2Filter element and filter system with a filter elementMANN & HUMMEL GMBH·Filed 2014·Granted Oct 4, 2016·7 cites·14 claims
- 1489US10159923B2Hollow filter element, grip device of a hollow filter element, and filter device with at least one hollow filter elementMANN & HUMMEL GMBH·Filed 2016·Granted Dec 25, 2018·5 cites·13 claims
- 1585US10799823B2Housing main part of a filter housing, filter system, and pre-separator module of a filter systemMANN & HUMMEL GMBH·Filed 2017·Granted Oct 13, 2020·3 cites·9 claims
- 1684US9233333B2Filter elementMANN & HUMMEL GMBH·Filed 2014·Granted Jan 12, 2016·3 cites·18 claims
- 1784US8523973B2Filter element for fluid filtration, in particular for intake air of internal combustion enginesACKERMANN STEFFEN·Filed 2012·Granted Sep 3, 2013·7 cites·11 claims
- 1884US4078604ACooling channel surface arrangement for a heat exchanger wall constructionMESSERSCHMITT BOELKOW BLOHM·Filed 1975·Granted Mar 14, 1978·49 cites·10 claims
- 1983US10954899B2Filter and filter cartridgeMANN & HUMMEL GMBH·Filed 2019·Granted Mar 23, 2021·1 cites·13 claims
- 2082US9205360B2Filter element and housing for a filter elementKAUFMANN MICHAEL·Filed 2012·Granted Dec 8, 2015·6 cites·7 claims
- 2181US9457307B2Filter system with filter elementMANN & HUMMEL GMBH·Filed 2014·Granted Oct 4, 2016·4 cites·19 claims
- 2281US8466641B2Power tool having an electric brakeKAUFMANN MICHAEL·Filed 2011·Granted Jun 18, 2013·15 cites·20 claims
- 2379US12330103B2Filter element, element frame of a filter element, filter bellows of a filter element, filter housing, and filterMANN & HUMMEL GMBH·Filed 2023·Granted Jun 17, 2025·0 cites·10 claims
- 2479US11273402B2Filter element, element frame of a filter element, filter bellows of a filter element, filter housing, and filterMANN & HUMMEL GMBH·Filed 2018·Granted Mar 15, 2022·1 cites·11 claims
- 2578US2024252965A1Particle Discharge Device, Filter Assembly, and MethodMANN & HUMMEL GMBH·Filed 2024·Application pending·0 cites
- 2677US8864865B2Air filter element, filter housing and filter arrangementKAUFMANN MICHAEL·Filed 2012·Granted Oct 21, 2014·3 cites·12 claims
- 2776US11697084B2Filter element, element frame of a filter element, filter bellows of a filter element, filter housing, and filterMANN & HUMMEL GMBH·Filed 2022·Granted Jul 11, 2023·0 cites·10 claims
- 2875US9108137B2Filter arrangement and method for producing a filter receptacleMANN & HUMMEL GMBH·Filed 2013·Granted Aug 18, 2015·3 cites·12 claims
- 2974US11092118B2Filter housing and filterMANN & HUMMEL GMBH·Filed 2018·Granted Aug 17, 2021·1 cites·7 claims
- 3073US12345224B2Muffler and filter systemMANN & HUMMEL GMBH·Filed 2023·Granted Jul 1, 2025·0 cites·15 claims
- 3173US12292021B2Filter element and air cleaner assemblyMANN & HUMMEL GMBH·Filed 2023·Granted May 6, 2025·0 cites·17 claims
- 3273US11719202B2Filter and filter cartridgeMANN & HUMMEL GMBH·Filed 2020·Granted Aug 8, 2023·0 cites·31 claims
- 3373USD762834SAir filterMANN & HUMMEL GMBH·Filed 2015·Granted Aug 2, 2016·15 cites·1 claims
- 3472US9233331B2Air filter elementMANN & HUMMEL GMBH·Filed 2014·Granted Jan 12, 2016·1 cites·13 claims
- 3571US9314721B2Filter system with sealMANN & HUMMEL GMBH·Filed 2014·Granted Apr 19, 2016·2 cites·5 claims
- 3670US9212636B2FilterMANN & HUMMEL GMBH·Filed 2013·Granted Dec 15, 2015·2 cites·14 claims
- 3769US2025367585A1Filter element and filter systemMANN & HUMMEL GMBH·Filed 2025·Application pending·0 cites
- 3868US11918944B2Particle discharge device, filter assembly, and methodMANN & HUMMEL GMBH·Filed 2021·Granted Mar 5, 2024·0 cites·9 claims
- 3968US11311891B2Multi-cyclone separator of a multi-stage fluid filter for cleaning gaseous fluid and multi-stage fluid filterMANN & HUMMEL GMBH·Filed 2019·Granted Apr 26, 2022·0 cites·13 claims
- 4065US8985237B2Power screwdriverKAUFMANN MICHAEL·Filed 2011·Granted Mar 24, 2015·3 cites·11 claims
- 4165US2024252970A1Filter element and filter systemMANN & HUMMEL GMBH·Filed 2024·Application pending·0 cites
- 4265US2024252972A1Filter element and filter systemMANN & HUMMEL GMBH·Filed 2024·Application pending·0 cites
- 4364US10138852B2Air filter elementMANN & HUMMEL GMBH·Filed 2017·Granted Nov 27, 2018·0 cites·18 claims
- 4463US10293294B2Air filter system and air filter element for an air filter systemMANN & HUMMEL GMBH·Filed 2016·Granted May 21, 2019·0 cites·15 claims
- 4562US12415153B2Filter element and filter systemMANN & HUMMEL GMBH·Filed 2023·Granted Sep 16, 2025·0 cites·16 claims
- 4662US11725615B2Secondary filter element and filter arrangementMANN & HUMMEL GMBH·Filed 2021·Granted Aug 15, 2023·0 cites·11 claims
- 4762US10408173B2Filter elementMANN & HUMMEL GMBH·Filed 2016·Granted Sep 10, 2019·0 cites·17 claims
- 4862US9649585B2Filter system with sensor socketMANN & HUMMEL GMBH·Filed 2014·Granted May 16, 2017·0 cites·12 claims
- 4962US9623358B2Filter system having a support tubeMANN & HUMMEL GMBH·Filed 2014·Granted Apr 18, 2017·0 cites·13 claims
- 5061US9657695B2Air filter elementMANN & HUMMEL GMBH·Filed 2014·Granted May 23, 2017·0 cites·5 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Michael Kaufmann 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 →