WP

William F. Porter

UG United States Gypsum: 4 patents #100 of 432Top 25%
UI Usg Interiors: 1 patents #90 of 171Top 55%
📍 Lake Zurich, IL: #44 of 484 inventorsTop 10%
🗺 Illinois: #6,059 of 84,256 inventorsTop 8%
Overall (All Time): #355,466 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
D537765 License plate bracket backup sensor with camera 2007-03-06
D525888 Back up sensor 2006-08-01
D478518 Back-up sensor strip 2003-08-19
D411499 Back-up sensor in a license plate holder 1999-06-29
5352260 Manufacture of mineral fiber Robert A. Carlson, James L. Medwid 1994-10-04
5046665 Control means for injection systems of agricultural sprayers Bouko J. Kor 1991-09-10
5022963 Wet end corrugating of acoustical tile Michael G. Mastrogany, Michael J. Porter 1991-06-11
4681613 Slag furnace melt flow control valve 1987-07-21
4670032 Melt flow control valve 1987-06-02
D289738 Combined dispensing box for pills and electric alarm John T. McLaughlin, Michael J. Fell, B. Ralph Sylvia 1987-05-12
4576620 Apparatus for the production of mineral fibers having supplemental collection chamber exhaust Michael J. Porter, Dwight E. Johnson 1986-03-18
4397623 Apparatus for the production of mineral fibers by means of rotating discs Donald R. Janninck 1983-08-09
4382809 Method and apparatus for the production of mineral fiber felts having fiber-leveling device Shirley J. Schwab, Karl Edmund Schneider 1983-05-10
4342582 Apparatus for fiberization of mineral fiber having directional shroud 1982-08-03