Home › Whitey › Douglas A. Covert

Douglas A. Covert

WHWhitey: 1 patents #13 of 24Top 55%

Painesville, OH: #178 of 292 inventorsTop 65%

Ohio: #42,657 of 73,341 inventorsTop 60%

Overall (All Time): #3,838,117 of 4,157,543Top 95%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5263682	Valve stem packing system	Peter C. Williams	1993-11-23