Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5939591 | Apparatus for producing alkylene glycols, alkylene glyocols having higher primary hydroxyl content, method of producing glycols having higher primary hydroxyl content, method of producing acrylate esters | Jeffrey D. Birdwell, Micheal L. Chappell, Philip J. Carlberg, Robert P. Shirtum, Walter L. Wernli | 1999-08-17 |
| 5693870 | Apparatus for producing alkylene glycols, alkyene glycols having higher primary hydroxyl content, method of producing glycols having higher primary hydroxyl content, method of producing acrylate esters | Jeffrey D. Birdwell, Philip J. Carlberg, Micheal L. Chappell, Robert P. Shirtum, Walter L. Wernli | 1997-12-02 |
| 4946939 | High purity polyether polyols | Robert T. Jernigan, Jeff G. Grierson, Wayne G. Wessels | 1990-08-07 |
| 4865831 | Recovery of zinc and ammonium chloride | Matt W. Oleksy | 1989-09-12 |
| 4804764 | Process for producing 2,3,5,6-tetrachloropyridine | — | 1989-02-14 |
| 4703123 | Process for producing 2,3,5,6-tetrachloropyridine | — | 1987-10-27 |
| 4339642 | Current switching member for circuit breakers | Raymond K. Seymour, Lelio C. Vergnano | 1982-07-13 |
| 4297663 | Circuit breaker accessories packaged in a standardized molded case | Raymond K. Seymour | 1981-10-27 |