Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654109 | Composite fuel cell membranes | Keith R. Plowman, Timothy Rehg, Larry W. Davis, Alan J. Cisar, Charles S. Eastland | 1997-08-05 |
| 5114515 | Method for forming polymer composite films using removable substrates | Jeffrey D. Birdwell | 1992-05-19 |
| 5110385 | Method for forming polymer composite films using a removable substrate | Jeffrey D. Birdwell | 1992-05-05 |
| 4940525 | Low equivalent weight sulfonic fluoropolymers | Bobby R. Ezzell | 1990-07-10 |
| 4859745 | Stratified fibrous fluoropolymer compositions and process for forming such fluoropolymers | Emmett L. Tasset, Robert E. Aikman, Jr. | 1989-08-22 |
| 4834922 | Process to produce novel fluorocarbon vinyl ethers and resulting polymers | Bobby R. Ezzell, William A. Mod | 1989-05-30 |
| 4804727 | Process to produce novel fluorocarbon vinyl ethers and resulting polymers | Bobby R. Ezzell, William A. Mod | 1989-02-14 |
| 4784882 | Method for forming composite polymer films | Jeffrey D. Birdwell | 1988-11-15 |
| 4784900 | Method for sizing polytretrafluoroethylene fabrics | Jeffrey D. Birdwell | 1988-11-15 |
| 4778723 | Method for sizing polytetrafluoroethylene fibers, yarn, or threads | Jeffrey D. Birdwell | 1988-10-18 |
| 4748190 | Process for forming a shaped porous fluorinated polymer catalyst and the resultant product | — | 1988-05-31 |
| 4698243 | Method for sizing and hydrolyzing polytetrafluoroethylene fabrics, fibers, yarns, or threads | Jeffrey D. Birdwell | 1987-10-06 |
| 4687821 | Preparation, decarboxylation and polymerization of novel acid fluorides and resulting monomers | Bobby R. Ezzell, William A. Mod | 1987-08-18 |
| 4650711 | Method for sizing polytetrafluoroethylene fabrics | Jeffrey D. Birdwell | 1987-03-17 |
| 4650551 | Supported ion exchange membrane films | Jeffrey D. Birdwell | 1987-03-17 |
| 4578512 | Process to produce novel fluorocarbon vinyl ethers and resulting polymers | Bobby R. Ezzell, William A. Mod | 1986-03-25 |
| 4554112 | Method for the preparation of vinyl compounds | Bobby R. Ezzell, William A. Mod | 1985-11-19 |
| 4515989 | Preparation decarboxylation and polymerization of novel acid flourides and resulting monomers | Bobby R. Ezzell, William A. Mod | 1985-05-07 |
| 4478695 | Sulfonic acid electrolytic cell membranes and use thereof in the electrolysis of sodium chloride | Bobby R. Ezzell, William A. Mod | 1984-10-23 |
| 4470889 | Electrolytic cell having an improved ion exchange membrane and process for operating | Bobby R. Ezzell, William A. Mod | 1984-09-11 |
| 4423249 | Preparation of halofluoroalkyl ethers | Bobby R. Ezzell | 1983-12-27 |
| 4417969 | Sulfonic acid electrolytic cell membranes | Bobby R. Ezzell, William A. Mod | 1983-11-29 |
| 4358545 | Sulfonic acid electrolytic cell having flourinated polymer membrane with hydration product less than 22,000 | Bobby R. Ezzell, William A. Mod | 1982-11-09 |
| 4358412 | Preparation of vinyl ethers | Bobby R. Ezzell, William A. Mod | 1982-11-09 |
| 4337211 | Fluorocarbon ethers having substituted halogen site(s) and process to prepare | Bobby R. Ezzell, William A. Mod | 1982-06-29 |