MR

Mark A. Roll

DL Dana Limited: 12 patents #22 of 1,099Top 3%
WC Wix Filtration Corp.: 12 patents #1 of 23Top 5%
MU Mann+Hummel Filtration Technology Us: 11 patents #2 of 15Top 15%
MG Mann+Hummel Filtration Technology Group: 6 patents #1 of 10Top 10%
📍 Bessemer City, NC: #1 of 14 inventorsTop 8%
🗺 North Carolina: #750 of 45,564 inventorsTop 2%
Overall (All Time): #72,337 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 26–42 of 42 patents

Patent #TitleCo-InventorsDate
7531090 Fluid filter element Willie L. Stamey, Jr. 2009-05-12
7335300 Fluid filter element Willie L. Stamey, Jr. 2008-02-26
RE40051 One-piece self-venting drain valve Willie L. Stamey, Jr. 2008-02-12
6994787 Clear plastic injection molded fuel/water separator Willie L. Stamey, Jr. 2006-02-07
6972092 Self-venting valve end cap and method 2005-12-06
6843377 Spacer and filter assembly utilizing the spacer 2005-01-18
6761822 Dual filter with flow mixer and centrifugal separator Gregory K. Rhyne, Willie L. Stamey, Jr., Johnny H. Wong 2004-07-13
6565746 One-piece self-venting drain valve Willie L. Stamey, Jr. 2003-05-20
6401575 Wrench for fuel filter housing covers Terrance Allen Shively, Willie L. Stamey, Jr. 2002-06-11
6387259 Spin-on filter assemblies 2002-05-14
6350379 Dual filter with flow mixer Gregory K. Rhyne, Willie L. Stamey, Jr. 2002-02-26
6270660 Flow inverter for filters Willie L. Stamey, Jr. 2001-08-07
5830349 Flow inverter for filters Willie L. Stamey, Jr. 1998-11-03
5817232 Rebuildable spin-on filters Gregory K. Rhyne 1998-10-06
5783078 Fuel/water separator filter without flow diverters and method of making same Willie L. Stamey, Jr. 1998-07-21
5733443 Inside to outside flow filters Willie L. Stamey, Jr., Christopher L. Loafman 1998-03-31
5606989 Self-venting valve arrangement Willie L. Stamey, Jr., Christopher L. Loafman 1997-03-04