Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4964180 | Shower strainer mounting assembly | — | 1990-10-23 |
| 4918761 | Method of using a toilet-flange cast-in mount | — | 1990-04-24 |
| 4916800 | Fire-retardant fluid coupling assembly and method | — | 1990-04-17 |
| 4888925 | Fire-retardant fluid coupling assembly and method | — | 1989-12-26 |
| 4882886 | Automatically-releasable pipe attachment device | — | 1989-11-28 |
| 4877216 | Automatically-releasable pipe-attachment device | — | 1989-10-31 |
| 4858958 | Slip-joint coupling | — | 1989-08-22 |
| 4850385 | Fire stop pipe coupling adaptor | — | 1989-07-25 |
| 4848043 | Under floor fire stop coupling and method | — | 1989-07-18 |
| 4823527 | Plumbing concrete form accessory | — | 1989-04-25 |
| 4804160 | Automatically-releasable pipe-attachment device | — | 1989-02-14 |
| 4748787 | Pipe flange fire-proofing kit and process | — | 1988-06-07 |
| 4671483 | Concrete-form conduit holder | — | 1987-06-09 |
| 4669759 | Fire-stop stack fitting and method of using same | — | 1987-06-02 |
| 4642956 | Fire-retardant fluid coupling assembly and method | — | 1987-02-17 |
| 4619087 | Barrier-embedded pipe-coupling apparatus and method | — | 1986-10-28 |
| 4619471 | Embedded pipe coupling holder | — | 1986-10-28 |
| 4453354 | Pipe support coupling and method of using same | — | 1984-06-12 |
| 4313286 | Pipe support coupling and method of using same | — | 1982-02-02 |