Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6007270 | Manhole frame assembly | — | 1999-12-28 |
| 5697729 | Anchor for utility access hole support insert | — | 1997-12-16 |
| 5628152 | Adjustable manhole cover support with shield | — | 1997-05-13 |
| 5611640 | Method and apparatus for anchoring a utility grate cover | — | 1997-03-18 |
| 5326188 | Anchor for manhole cover support | — | 1994-07-05 |
| RE34550 | Sturdy adjustable manhole cover support | — | 1994-02-22 |
| 5184912 | Split-ring manhole cover support | George T. Fuller | 1993-02-09 |
| 5165819 | Manhole cover support with flange borne on its own base | — | 1992-11-24 |
| 5150984 | Stiffening flanges for deformation resistance of manhole cover support | George T. Fuller | 1992-09-29 |
| 5143478 | Adjustable manhole cover support with spanners | — | 1992-09-01 |
| 5051022 | Manhole cover support with topside flange and inclined seat | — | 1991-09-24 |
| 5039248 | Support for catch basin cover | — | 1991-08-13 |
| 5021261 | Process for making a manhole cover support having enhanced grip | — | 1991-06-04 |
| 4969770 | Manhole cover support with topside flange | — | 1990-11-13 |
| 4969771 | Manhole cover support having enhanced grip | — | 1990-11-13 |
| 4966489 | Manhole cover support having interbraced top members | — | 1990-10-30 |
| 4963053 | Multicomponent wales and bases for manhole cover supports | — | 1990-10-16 |
| 4927290 | Manhole cover support resistant to water infiltration | — | 1990-05-22 |
| 4872780 | Manhole cover support with box flanging | — | 1989-10-10 |
| 4867600 | Polygonal manhole cover support | — | 1989-09-19 |
| 4867601 | Sturdy adjustable manhole cover support | — | 1989-09-19 |
| 4834574 | Utility cover extension | — | 1989-05-30 |
| 4747739 | Ingot mold and method | Thomas P. Kicher | 1988-05-31 |
| 4416440 | Ingot mold and method | Thomas P. Kicher | 1983-11-22 |
| 4358084 | Sectional ingot mold | — | 1982-11-09 |