Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9309988 | Valve handle with permanent, integral identification | — | 2016-04-12 |
| 9228682 | Two-piece pipe flange and systems | — | 2016-01-05 |
| 8522812 | Valve handle with permanent, integral identification | — | 2013-09-03 |
| 6935361 | Pipe, piping system, radiant heating system, and kit | — | 2005-08-30 |
| 6742816 | Pipe flange and piping system | — | 2004-06-01 |
| 6712027 | Hot water heating system and connector for use therewith | — | 2004-03-30 |
| 6546898 | Hydronic heating system and kit | — | 2003-04-15 |
| 6283157 | Sweat flange, piping system and method of use | — | 2001-09-04 |
| 5839331 | Flange tightening tool | — | 1998-11-24 |
| D381049 | Marker for indicating order of play | — | 1997-07-15 |