OW

Oliver J. Whitfield

PI Pyro Industries: 8 patents #1 of 7Top 15%
Overall (All Time): #390,300 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
5893358 Pellet fuel burner for heating and drying systems 1999-04-13
5655513 Artificial log burner 1997-08-12
5617841 Grate with self ignitor for burning pellet fuel John B. Tacke, Jr. 1997-04-08
D370968 Wood stove door with single window 1996-06-18
5488943 Self-distributing combustion grate for pellet fueled stoves John B. Tacke, Jr. 1996-02-06
5383446 Self concentrating combustion grate for pellet fueled stoves 1995-01-24
D349764 Wood stove door with single window 1994-08-16
5295474 Combustion grate with rods for pellet fueled stove Phillip W. Robertson, Abbas Dadkhah-Nikoo, Craig G. Wright 1994-03-22
5137010 Combustion grate for pellet fueled stove Phillip W. Robertson, Craig G. Wright 1992-08-11
D316141 Wood stove door 1991-04-09
4947769 Apparatus for combustion of solid particulate fuel 1990-08-14
4945837 Pellet feed system 1990-08-07
4787322 Pellet feed system 1988-11-29