Inventor · disambiguated record
Robert Hasenfratz
Also filed as: HASENFRATZ ROBERT
41 granted patents·8 pending applications·146 citations·filing 1995–2024
97Inventor score
Top patents by PatentIndex Score
49 records- 0197US10316804B2Filter element with at least one guide crosspiece, filter with a filter element and filter housing of a filterMANN & HUMMEL GMBH·Filed 2017·Granted Jun 11, 2019·9 cites·10 claims
- 0295US11701602B2Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment deviceMANN & HUMMEL GMBH·Filed 2021·Granted Jul 18, 2023·2 cites·22 claims
- 0394US10384158B2Filter element having filter bellowsMANN & HUMMEL GMBH·Filed 2016·Granted Aug 20, 2019·9 cites·22 claims
- 0494US9289710B2Filter element and air filterMANN & HUMMEL GMBH·Filed 2014·Granted Mar 22, 2016·12 cites·20 claims
- 0591US10399010B2Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment deviceMANN & HUMMEL GMBH·Filed 2016·Granted Sep 3, 2019·4 cites·23 claims
- 0690US11027227B2Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment deviceMANN & HUMMEL GMBH·Filed 2019·Granted Jun 8, 2021·3 cites·15 claims
- 0790US9638147B2Filter element with at least one guide crosspiece, filter with a filter element and filter housing of a filterMANN & HUMMEL GMBH·Filed 2014·Granted May 2, 2017·9 cites·13 claims
- 0887US11415089B2Air filter with a primary air outlet and a secondary air outlet as well as filter element thereforMANN & HUMMEL GMBH·Filed 2021·Granted Aug 16, 2022·2 cites·21 claims
- 0987US10399012B2Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment deviceMANN & HUMMEL GMBH·Filed 2016·Granted Sep 3, 2019·4 cites·23 claims
- 1085US10737201B2Filter system and filter elementMANN & HUMMEL GMBH·Filed 2017·Granted Aug 11, 2020·3 cites·15 claims
- 1184US12064717B2Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment deviceMANN & HUMMEL GMBH·Filed 2023·Granted Aug 20, 2024·0 cites·10 claims
- 1283US9914085B2Filter element and filter systemMANN & HUMMEL GMBH·Filed 2015·Granted Mar 13, 2018·3 cites·15 claims
- 1382US9498744B2Air filter element and air filterMANN & HUMMEL GMBH·Filed 2014·Granted Nov 22, 2016·5 cites·18 claims
- 1481US9687768B2Filter deviceMANN & HUMMEL GMBH·Filed 2015·Granted Jun 27, 2017·2 cites·15 claims
- 1579US9415337B2Air filter element and air filterMANN & HUMMEL GMBH·Filed 2014·Granted Aug 16, 2016·4 cites·17 claims
- 1676US10702812B2Filter housing with locking form-fit elements and spring loading a filter element in the housingMANN & HUMMEL GMBH·Filed 2014·Granted Jul 7, 2020·3 cites·7 claims
- 1774US10279298B2Plate-type filter element for gas filtrationMANN & HUMMEL GMBH·Filed 2017·Granted May 7, 2019·1 cites·21 claims
- 1871US9759170B2Filter element, filter with a filter element and a filter housing of a filterMANN & HUMMEL GMBH·Filed 2014·Granted Sep 12, 2017·2 cites·14 claims
- 1969US9861924B2Filter element and filter systemMANN & HUMMEL GMBH·Filed 2015·Granted Jan 9, 2018·1 cites·13 claims
- 2069US5695355ALocking device for a connectorITT CANNON GMBH·Filed 1995·Granted Dec 9, 1997·31 cites·3 claims
- 2168US10561969B2Filter element having supporting elements, filter having a filter element, and filter housing of a filterMANN & HUMMEL GMBH·Filed 2015·Granted Feb 18, 2020·1 cites·14 claims
- 2268US2025058260A1Filter system and filter elementMANN & HUMMEL GMBH·Filed 2024·Application pending·0 cites
- 2367US7805990B2Arrangement of an air mass meter at a flow channelMANN & HUMMEL GMBH·Filed 2007·Granted Oct 5, 2010·6 cites·10 claims
- 2466US10220334B2Filter element and method for producing a filter elementMANN & HUMMEL GMBH·Filed 2014·Granted Mar 5, 2019·1 cites·6 claims
- 2566US9511318B2Filter element with hand grip elements and filter with a filter elementMANN & HUMMEL GMBH·Filed 2014·Granted Dec 6, 2016·1 cites·9 claims
- 2664US9284925B2Flat filter element of a filter, filter and support device of a filterMANN & HUMMEL GMBH·Filed 2013·Granted Mar 15, 2016·1 cites·8 claims
- 2763US2020282342A1Filter device, in particular liquid filterMANN & HUMMEL GMBH·Filed 2020·Application pending·0 cites
- 2862US10883456B2Filter element with retaining surfaces, filter with a filter element and filter housing of a filterMANN & HUMMEL GMBH·Filed 2017·Granted Jan 5, 2021·0 cites·10 claims
- 2962US10344718B2Filter element, in particular for gas filtrationMANN & HUMMEL GMBH·Filed 2016·Granted Jul 9, 2019·0 cites·17 claims
- 3062US10233876B2Filter element, in particular, for gas filtrationMANN & HUMMEL GMBH·Filed 2016·Granted Mar 19, 2019·0 cites·17 claims
- 3162US10184434B2Filter device, in particular for gas filtrationMANN & HUMMEL GMBH·Filed 2016·Granted Jan 22, 2019·0 cites·24 claims
- 3260US12172114B2Air filter comprising a primary air outlet and a secondary air outlet and filter element for sameMANN & HUMMEL GMBH·Filed 2022·Granted Dec 24, 2024·0 cites·27 claims
- 3360US11731067B2Filter element for filtration and dehumidification of a gasMANN & HUMMEL GMBH·Filed 2019·Granted Aug 22, 2023·0 cites·19 claims
- 3460US5791932AReleasable connector assemblyITT CANNON INC·Filed 1996·Granted Aug 11, 1998·21 cites·10 claims
- 3559US10610810B2Filter device, in particular liquid filterMANN & HUMMEL GMBH·Filed 2016·Granted Apr 7, 2020·0 cites·8 claims
- 3659US9644580B2Filter element with retaining surfaces, filter with a filter element and filter housing of a filterMANN & HUMMEL GMBH·Filed 2014·Granted May 9, 2017·0 cites·6 claims
- 3756US10179302B2Filter system comprising coupling deviceMANN & HUMMEL GMBH·Filed 2016·Granted Jan 15, 2019·0 cites·13 claims
- 3850US10946324B2Round filter element, in particular for gas filtrationMANN & HUMMEL GMBH·Filed 2019·Granted Mar 16, 2021·0 cites·11 claims
- 3950US2015007732A1Air Filter Element and Air FilterMANN & HUMMEL GMBH·Filed 2014·Application pending·0 cites
- 4050US2020222835A1Filter element assembly with sealing element and filter systemMANN & HUMMEL GMBH·Filed 2020·Application pending·0 cites
- 4149US10071330B2Filter element, in particular for gas filtrationMANN & HUMMEL GMBH·Filed 2015·Granted Sep 11, 2018·0 cites·17 claims
- 4249US6398574B1Sleeve and stud connector latchITT MFG ENTERPRISES INC·Filed 2000·Granted Jun 4, 2002·6 cites·5 claims
- 4345US10898833B2Filter device, in particular liquid filterMANN & HUMMEL GMBH·Filed 2016·Granted Jan 26, 2021·0 cites·14 claims
- 4445US2018036665A1Filter Element, in Particular for Gas FiltrationMANN & HUMMEL GMBH·Filed 2017·Application pending·0 cites
- 4544US10350534B2Filter element, in particular for gas filtrationMANN & HUMMEL GMBH·Filed 2017·Granted Jul 16, 2019·0 cites·12 claims
- 4644US2017216748A1Filter Element, in Particular for Gas FiltrationMANN & HUMMEL GMBH·Filed 2017·Application pending·0 cites
- 4743US10010818B2Filter elementMANN & HUMMEL GMBH·Filed 2016·Granted Jul 3, 2018·0 cites·13 claims
- 4841US2016305376A1Filter element, in particular for gas filtrationMANN & HUMMEL GMBH·Filed 2016·Application pending·0 cites
- 4936US2015231539A1Filter System and Filter Element having a Coupling Device and Locking DeviceMANN & HUMMEL GMBH·Filed 2015·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Robert Hasenfratz 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 →