P

Inventor

HASENFRATZ ROBERT

DE42 patents
⚠️ This page may combine multiple inventors who share the name “HASENFRATZ ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MANN & HUMMEL GMBH

39 patents
US10384158B2Aug 20, 2019

Filter element having filter bellows

MANN & HUMMEL GMBH9 citations84
US10316804B2Jun 11, 2019

Filter element with at least one guide crosspiece, filter with a filter element and filter housing of a filter

MANN & HUMMEL GMBH9 citations84
US9638147B2May 2, 2017

Filter element with at least one guide crosspiece, filter with a filter element and filter housing of a filter

MANN & HUMMEL GMBH9 citations84
US9289710B2Mar 22, 2016

Filter element and air filter

MANN & HUMMEL GMBH12 citations84
US11701602B2Jul 18, 2023

Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment device

MANN & HUMMEL GMBH2 citations73
US11027227B2Jun 8, 2021

Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment device

MANN & HUMMEL GMBH3 citations73
US10702812B2Jul 7, 2020

Filter housing with locking form-fit elements and spring loading a filter element in the housing

MANN & HUMMEL GMBH3 citations73
US10399010B2Sep 3, 2019

Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment device

MANN & HUMMEL GMBH4 citations73
US10399012B2Sep 3, 2019

Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment device

MANN & HUMMEL GMBH4 citations73
US9759170B2Sep 12, 2017

Filter element, filter with a filter element and a filter housing of a filter

MANN & HUMMEL GMBH2 citations73
US9687768B2Jun 27, 2017

Filter device

MANN & HUMMEL GMBH2 citations73
US9498744B2Nov 22, 2016

Air filter element and air filter

MANN & HUMMEL GMBH5 citations72
US9415337B2Aug 16, 2016

Air filter element and air filter

MANN & HUMMEL GMBH4 citations72
US11415089B2Aug 16, 2022

Air filter with a primary air outlet and a secondary air outlet as well as filter element therefor

MANN & HUMMEL GMBH2 citations70
US10737201B2Aug 11, 2020

Filter system and filter element

MANN & HUMMEL GMBH3 citations70
US9914085B2Mar 13, 2018

Filter element and filter system

MANN & HUMMEL GMBH3 citations69
US12064717B2Aug 20, 2024

Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment device

MANN & HUMMEL GMBH0 citations62
US11731067B2Aug 22, 2023

Filter element for filtration and dehumidification of a gas

MANN & HUMMEL GMBH0 citations62
US10883456B2Jan 5, 2021

Filter element with retaining surfaces, filter with a filter element and filter housing of a filter

MANN & HUMMEL GMBH0 citations62
US10220334B2Mar 5, 2019

Filter element and method for producing a filter element

MANN & HUMMEL GMBH1 citations62
US10561969B2Feb 18, 2020

Filter element having supporting elements, filter having a filter element, and filter housing of a filter

MANN & HUMMEL GMBH1 citations61
US10279298B2May 7, 2019

Plate-type filter element for gas filtration

MANN & HUMMEL GMBH1 citations61
US7805990B2Oct 5, 2010

Arrangement of an air mass meter at a flow channel

MANN & HUMMEL GMBH6 citations61
US12558644B2Feb 24, 2026

Filter element for an air filter having a primary air outlet and a secondary air outlet, and an air filter and installation method

MANN & HUMMEL GMBH0 citations59
US10898833B2Jan 26, 2021

Filter device, in particular liquid filter

MANN & HUMMEL GMBH0 citations52
US10344718B2Jul 9, 2019

Filter element, in particular for gas filtration

MANN & HUMMEL GMBH0 citations52
US10233876B2Mar 19, 2019

Filter element, in particular, for gas filtration

MANN & HUMMEL GMBH0 citations52
US10184434B2Jan 22, 2019

Filter device, in particular for gas filtration

MANN & HUMMEL GMBH0 citations52
US9644580B2May 9, 2017

Filter element with retaining surfaces, filter with a filter element and filter housing of a filter

MANN & HUMMEL GMBH0 citations52
US9511318B2Dec 6, 2016

Filter element with hand grip elements and filter with a filter element

MANN & HUMMEL GMBH1 citations52
US9284925B2Mar 15, 2016

Flat filter element of a filter, filter and support device of a filter

MANN & HUMMEL GMBH1 citations52
US10071330B2Sep 11, 2018

Filter element, in particular for gas filtration

MANN & HUMMEL GMBH0 citations51
US10946324B2Mar 16, 2021

Round filter element, in particular for gas filtration

MANN & HUMMEL GMBH0 citations50
US10179302B2Jan 15, 2019

Filter system comprising coupling device

MANN & HUMMEL GMBH0 citations50
US12172114B2Dec 24, 2024

Air filter comprising a primary air outlet and a secondary air outlet and filter element for same

MANN & HUMMEL GMBH0 citations49
US9861924B2Jan 9, 2018

Filter element and filter system

MANN & HUMMEL GMBH1 citations48
US10610810B2Apr 7, 2020

Filter device, in particular liquid filter

MANN & HUMMEL GMBH0 citations42
US10350534B2Jul 16, 2019

Filter element, in particular for gas filtration

MANN & HUMMEL GMBH0 citations42
US10010818B2Jul 3, 2018

Filter element

MANN & HUMMEL GMBH0 citations42

ITT CANNON INC

1 patent

ITT CANNON GMBH

1 patent

ITT MFG ENTERPRISES INC

1 patent