DH

Dennis J. Hayman

UB United States Brass: 6 patents #1 of 8Top 15%
EM Eljer Manufacturing: 1 patents #3 of 5Top 60%
📍 Bloomfield Hills, MI: #203 of 1,072 inventorsTop 20%
🗺 Michigan: #13,574 of 86,293 inventorsTop 20%
Overall (All Time): #765,724 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5579542 Toilet with water saving, vacuum-assisted flushing apparatus and associated methods 1996-12-03
4807306 Pop-up drain assembly for lavatory basins David M. Pearce 1989-02-28
4765590 Faucet valve with diagonal sealing ring 1988-08-23
4681140 Tub-shower diverter apparatus 1987-07-21
4606372 Faucet valve bonnet locking means 1986-08-19
4502507 Single handle faucet valve 1985-03-05
4397330 Mixing valve for back to back installation 1983-08-09