David L. Greer

WA Wire Belt Company Of America: 2 patents #2 of 14Top 15%

📍 Youngstown, OH: #55 of 284 inventorsTop 20%

🗺 Ohio: #18,857 of 73,341 inventorsTop 30%

Overall (All Time): #1,275,598 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
6202833	Conveyor belt with variable spacing	—	2001-03-20
5950807	Wire belt with variable spacing and method of making	—	1999-09-14
5894871	Sand hopper for filling bags	—	1999-04-20
4724670	Turbine engine	—	1988-02-16