Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11268616 | Envelope gasket | Timothy Meade Heartwell, Jeffery William Wilson | 2022-03-08 |
| 9944459 | Manway lid gasket | Stephen E. Benet, James E. B. Frew, Thomas P. Lokey, Daniel Ferris Matthews REID | 2018-04-17 |
| 8916777 | Dust tight and water tight seal for conduit/junction box connection | Douglas Thomas Warthan, Brian Alton Blue | 2014-12-23 |
| 8066843 | Seamless corrugated insert gasket and method of forming the same | Tyler Hamilton Ragsdale, Robert Adam Riggs | 2011-11-29 |
| 7455301 | Seamless corrugated insert gasket and method of forming the same | Tyler Hamilton Ragsdale, Robert Adam Riggs | 2008-11-25 |
| 6824140 | Manway cover gasket | James E. B. Frew, Robert Adam Riggs | 2004-11-30 |
| 6682081 | Reduced area gaskets | Brian Douglas Burton, James E. B. Frew | 2004-01-27 |
| 5964468 | Anti-buckling spiral wound gasket | Rickey W Chester, David G. Malgee, Paul F. Malgee | 1999-10-12 |
| 5551706 | Composite gasket for sealing flanges and method for making and using same | Eileen C. Barna, Elizabeth M. Hamilton, Eric W. Lalli, Cindy B. Lubin, Wanda F. Sparks | 1996-09-03 |
| 5527047 | Fire safe spiral wound gasket with expanded PTFE and graphite windings | — | 1996-06-18 |
| 5494301 | Wrapped composite gasket material | Elizabeth M. Hamilton, Eric W. Lalli, Cindy B. Lubin, Wanda F. Sparks | 1996-02-27 |
| 5492336 | O-ring gasket material and method for making and using same | Eileen C. Barna, Elizabeth M. Hamilton, Eric W. Lalli, Cindy B. Lubin, Wanda F. Sparks | 1996-02-20 |
| 5486010 | Gasket material for use in plate and frame apparatus and method for making and using same | Elizabeth M. Hamilton, Eric W. Lalli, Cindy B. Lubin, Wanda F. Sparks | 1996-01-23 |
| 5112664 | Shielded gasket assembly | — | 1992-05-12 |