DB

Douglas R. Batchelor

LB Libman Broom: 8 patents #1 of 5Top 20%
Overall (All Time): #429,695 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5169606 Ozone generator apparatus 1992-12-08
5008087 Ozone generator apparatus and method 1991-04-16
4862550 Roller mop sponge retainer 1989-09-05
D302759 Wringer sponge mop 1989-08-08
4792256 Implement with connector joining handle to working head 1988-12-20
4706323 Sponge mop retainer with retraction rod hook receiving catch 1987-11-17
4553282 Mop head 1985-11-19
4509224 Refill sponge mop assembly 1985-04-09
4468830 Sponge mop 1984-09-04
4468832 Refill sponge mop assembly 1984-09-04
4413607 Propane carburetion system William H. Batchelor 1983-11-08
4369751 Liquefied propane carburetor modification system William H. Batchelor 1983-01-25