Inventor
DEMA KEH B
US25 patents
⚠️ This page may combine multiple inventors who share the name “DEMA KEH B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DONALDSON CO INC
16 patentsUS7314497B2Jan 1, 2008
Filter medium and structure
DONALDSON CO INC272 citations98
US7309372B2Dec 18, 2007
Filter medium and structure
DONALDSON CO INC174 citations98
US8021457B2Sep 20, 2011
Filter media and structure
DONALDSON CO INC77 citations97
US7985344B2Jul 26, 2011
High strength, high capacity filter media and structure
DONALDSON CO INC61 citations97
US5250094AOct 5, 1993
Ceramic filter construction and method
DONALDSON CO INC95 citations93
US9795906B2Oct 24, 2017
Filter medium and breather filter structure
DONALDSON CO INC13 citations92
US11504663B2Nov 22, 2022
Filter medium and breather filter structure
DONALDSON CO INC4 citations83
USRE49097EJun 7, 2022
Filter medium and structure
DONALDSON CO INC4 citations83
US10610813B2Apr 7, 2020
Filter medium and breather filter structure
DONALDSON CO INC7 citations83
USRE47737ENov 26, 2019
Filter medium and structure
DONALDSON CO INC4 citations83
US10226723B2Mar 12, 2019
Liquid filtration media, filter elements and methods
DONALDSON CO INC5 citations82
US11821119B2Nov 21, 2023
High temperature treated media
DONALDSON CO INC2 citations72
US11565206B2Jan 31, 2023
Liquid filtration media, filter elements and methods
DONALDSON CO INC3 citations71
US12172111B2Dec 24, 2024
Filter medium and breather filter structure
DONALDSON CO INC0 citations62
USRE50226EDec 3, 2024
Filter medium and structure
DONALDSON CO INC0 citations62
US12350613B2Jul 8, 2025
Liquid filtration media, filter elements and methods
DONALDSON CO INC0 citations61
ROGERS ROBERT M
5 patentsUS8268033B2Sep 18, 2012
Filter medium and structure
ROGERS ROBERT M70 citations98
US8641796B2Feb 4, 2014
Filter medium and breather filter structure
ROGERS ROBERT M40 citations97
US8277529B2Oct 2, 2012
Filter medium and breather filter structure
ROGERS ROBERT M44 citations97
US8512435B2Aug 20, 2013
Filter medium and breather filter structure
ROGERS ROBERT M32 citations96
US8460424B2Jun 11, 2013
Aerosol separator; and method
ROGERS ROBERT M24 citations92