Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6131915 | Seal | — | 2000-10-17 |
| 5669612 | Metallic seal rings | — | 1997-09-23 |
| 5577742 | Metallic stem seal with inclined channel and integral support member | Michael J. C. Tozer | 1996-11-26 |
| 5558347 | Seal | — | 1996-09-24 |
| 5467966 | Seals | — | 1995-11-21 |
| 5354072 | Hollow metal sealing rings | — | 1994-10-11 |
| 5240263 | Metallic sealing rings and their manufacture | — | 1993-08-31 |
| 5195759 | Static seal | — | 1993-03-23 |
| 4915397 | Hollow metallic sealing rings | — | 1990-04-10 |
| 4890816 | Valve seats | — | 1990-01-02 |
| 4832353 | Ring seals | — | 1989-05-23 |
| 4753443 | Composite annular seals for rotary ball valves and ball joints | — | 1988-06-28 |
| 4750749 | Gaskets | — | 1988-06-14 |
| 4601475 | Hat-shaped shaft seal of multiple layered material | — | 1986-07-22 |
| 4585238 | Channeled ring seals with spring rings | — | 1986-04-29 |
| 4585239 | Channeled ring seals with spring rings | — | 1986-04-29 |
| 4513978 | Cylinder head gasket | — | 1985-04-30 |
| 4451051 | Cylinder head gaskets | — | 1984-05-29 |
| 4390185 | Gaskets | — | 1983-06-28 |
| 4387904 | Gaskets | — | 1983-06-14 |
| 4372564 | Gaskets for cylinder heads | — | 1983-02-08 |
| 4335890 | Gasket for cylinder head | — | 1982-06-22 |
| 4319758 | Ring seal | — | 1982-03-16 |
| 4290616 | Gaskets | — | 1981-09-22 |
| 4203608 | Corrugated gaskets | — | 1980-05-20 |