Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10627329 | Pipe tester device | — | 2020-04-21 |
| 9982823 | Pipe coupling | — | 2018-05-29 |
| 8813336 | Sleeve coupling | — | 2014-08-26 |
| 8438807 | Firestop drain assembly | — | 2013-05-14 |
| 8191330 | Firestop drain assembly | — | 2012-06-05 |
| 7913718 | Noise reduction system | — | 2011-03-29 |
| 7810847 | Sleeve coupling | — | 2010-10-12 |
| D589127 | Plumbing fitting | — | 2009-03-24 |
| 6883187 | Toilet flange assembly | — | 2005-04-26 |
| 6795987 | Trap guard device | — | 2004-09-28 |
| 6679015 | Hub seal firestop device | — | 2004-01-20 |
| 6637464 | Hydrostatic test cap | — | 2003-10-28 |
| 6470635 | Coupling assembly with intumescent material | — | 2002-10-29 |
| 6405502 | Firestop assembly comprising intumescent material within a metal extension mounted on the inner surface of a plastic coupling | — | 2002-06-18 |
| 6336297 | Self sealing firestop coupling assembly | — | 2002-01-08 |
| 6305133 | Self sealing firestop coupling assembly | — | 2001-10-23 |
| 6161564 | Fire transmission prevention system | — | 2000-12-19 |
| 5325549 | Trap fitting assembly for mounting in flammable floors | — | 1994-07-05 |
| 5293724 | Coupling assembly for corrugated decks and method for connecting thereto | — | 1994-03-15 |
| 5263746 | Adjustably mounted fitting assembly | — | 1993-11-23 |
| 5183070 | Firestop device for flammable floor construction | — | 1993-02-02 |
| 5127425 | Horizontal firestop fitting | — | 1992-07-07 |
| 5076309 | Firestop stub-out assembly | — | 1991-12-31 |
| 5040351 | Coupling for concrete wall or floor mounting | — | 1991-08-20 |
| 5035097 | Coupling for concrete wall or floor mounting | — | 1991-07-30 |