Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D687970 | Integrated frame and curb box | — | 2013-08-13 |
| D687971 | Integrated frame and curb box | — | 2013-08-13 |
| D682445 | Frame and curb box | — | 2013-05-14 |
| D682444 | Frame and curb box | — | 2013-05-14 |
| D673690 | Frame and curb box | — | 2013-01-01 |
| 8292541 | Trench grate assembly with debris chute | — | 2012-10-23 |
| D667962 | Frame and curb box | — | 2012-09-25 |
| D622421 | Grate | — | 2010-08-24 |
| 7744304 | Socket hinged construction casting assembly | Timothy J. Law | 2010-06-29 |
| 7695213 | Cam-lift for a manhole cover | Randy P. Remme | 2010-04-13 |
| 7637695 | Heavy duty trench frame and grate assembly | — | 2009-12-29 |
| 7216459 | Access hatch cover assembly with lift-assist assembly and method therefor | Elizabeth L. Remme | 2007-05-15 |
| 7108447 | Construction castings with ball and socket connectors | Timothy J. Law | 2006-09-19 |
| 7094000 | Socket hinged construction casting assembly | Timothy J. Law | 2006-08-22 |
| 5443327 | Method and apparatus for forming a lined trench | Andy Aylward, Tim J. Koller | 1995-08-22 |