P

Inventor

KAUFMANN MICHAEL

DE64 patents
⚠️ This page may combine multiple inventors who share the name “KAUFMANN MICHAEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MANN & HUMMEL GMBH

33 patents
US9254457B2Feb 9, 2016

Air filter system, air filter element and method for exchanging an air filter element

MANN & HUMMEL GMBH25 citations94
US9358489B2Jun 7, 2016

Air filter system, air filter element and method for exchanging an air filter element

MANN & HUMMEL GMBH19 citations93
US10245541B2Apr 2, 2019

Air filter system, air filter element and method for exchanging an air filter element

MANN & HUMMEL GMBH14 citations86
US11311890B2Apr 26, 2022

Filter device

MANN & HUMMEL GMBH6 citations85
US10961957B2Mar 30, 2021

Filter and filter cartridge

MANN & HUMMEL GMBH4 citations84
US10337472B2Jul 2, 2019

Filter and filter cartridge

MANN & HUMMEL GMBH4 citations84
US10337471B2Jul 2, 2019

Filter and filter cartridge

MANN & HUMMEL GMBH9 citations84
US9587598B2Mar 7, 2017

Filter housing and filter assembly

MANN & HUMMEL GMBH8 citations84
US9511317B2Dec 6, 2016

Air filter system and air filter element for an air filter system

MANN & HUMMEL GMBH8 citations84
US9457308B2Oct 4, 2016

Filter element and filter system with a filter element

MANN & HUMMEL GMBH7 citations84
USD762834SAug 2, 2016

Air filter

MANN & HUMMEL GMBH15 citations84
US9457307B2Oct 4, 2016

Filter system with filter element

MANN & HUMMEL GMBH4 citations79
US10954899B2Mar 23, 2021

Filter and filter cartridge

MANN & HUMMEL GMBH1 citations73
US10865749B2Dec 15, 2020

Filter and filter cartridge

MANN & HUMMEL GMBH3 citations73
US10799823B2Oct 13, 2020

Housing main part of a filter housing, filter system, and pre-separator module of a filter system

MANN & HUMMEL GMBH3 citations73
US10159923B2Dec 25, 2018

Hollow filter element, grip device of a hollow filter element, and filter device with at least one hollow filter element

MANN & HUMMEL GMBH5 citations73
USD834166SNov 20, 2018

Filter housing

MANN & HUMMEL GMBH3 citations73
USD817468SMay 8, 2018

Filter housing

MANN & HUMMEL GMBH4 citations73
US9233333B2Jan 12, 2016

Filter element

MANN & HUMMEL GMBH3 citations73
US12330103B2Jun 17, 2025

Filter element, element frame of a filter element, filter bellows of a filter element, filter housing, and filter

MANN & HUMMEL GMBH0 citations63
US11719202B2Aug 8, 2023

Filter and filter cartridge

MANN & HUMMEL GMBH0 citations63
US11697084B2Jul 11, 2023

Filter element, element frame of a filter element, filter bellows of a filter element, filter housing, and filter

MANN & HUMMEL GMBH0 citations63
US11273402B2Mar 15, 2022

Filter element, element frame of a filter element, filter bellows of a filter element, filter housing, and filter

MANN & HUMMEL GMBH1 citations63
US11092118B2Aug 17, 2021

Filter housing and filter

MANN & HUMMEL GMBH1 citations63
US9314721B2Apr 19, 2016

Filter system with seal

MANN & HUMMEL GMBH2 citations63
US9233331B2Jan 12, 2016

Air filter element

MANN & HUMMEL GMBH1 citations63
US9212636B2Dec 15, 2015

Filter

MANN & HUMMEL GMBH2 citations63
US9108137B2Aug 18, 2015

Filter arrangement and method for producing a filter receptacle

MANN & HUMMEL GMBH3 citations63
US12345224B2Jul 1, 2025

Muffler and filter system

MANN & HUMMEL GMBH0 citations62
US11725615B2Aug 15, 2023

Secondary filter element and filter arrangement

MANN & HUMMEL GMBH0 citations62
US11311891B2Apr 26, 2022

Multi-cyclone separator of a multi-stage fluid filter for cleaning gaseous fluid and multi-stage fluid filter

MANN & HUMMEL GMBH0 citations62
US12292021B2May 6, 2025

Filter element and air cleaner assembly

MANN & HUMMEL GMBH0 citations61
US12576357B2Mar 17, 2026

Filter housing of a filter for a fluid and filter

MANN & HUMMEL GMBH0 citations52

KAUFMANN MICHAEL

6 patents

BENTELER STEEL TUBE GMBH

2 patents

RUHLAND KLAUS-DIETER

1 patent

MESSERSCHMITT BOELKOW BLOHM

1 patent

ACKERMANN STEFFEN

1 patent

BITOP GES OPTIMIERUNG GMBH

1 patent

IBM

1 patent

(unassigned)

1 patent

CATERPILLAR INC

1 patent

HAINDL HANS

1 patent

WABCO EUROPE BVBA

1 patent

Showing the top 50 of 64 patents by PatentIndex Score.