Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4962940 | Hand truck under-carriage for engaging stairs or the like | — | 1990-10-16 |
| 4873730 | Disengagable ring fitting for a toilet | — | 1989-10-17 |
| 4856910 | Motorized stirring apparatus | — | 1989-08-15 |
| 4780915 | Toilet floor flange | — | 1988-11-01 |
| 4730854 | Sealable drain fitting | — | 1988-03-15 |
| 4712758 | Nested hub knock-down pedestal | — | 1987-12-15 |
| 4622703 | Drain fitting with frictional seal retention | — | 1986-11-18 |
| 4597112 | Spring sealed drain fitting | — | 1986-07-01 |
| 4562602 | Floor drain with waste pipe reduction | — | 1986-01-07 |
| 4455693 | Self-contained, two-piece gasket seal assembly for drains | — | 1984-06-26 |
| 4447918 | Tamper-proof pop-up drain fitting | — | 1984-05-15 |
| 4412361 | Button actuated pop up drain fitting | — | 1983-11-01 |
| 4339832 | Flush mounted pop up drain fitting | — | 1982-07-20 |
| 4332393 | Self contained seal for drains | — | 1982-06-01 |
| 4329744 | Shower receptor drain | — | 1982-05-18 |
| 4261824 | Floor drain | — | 1981-04-14 |