Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4701530 | Two-stage process for making trimethyl pyridine | Randy J. LaTulip | 1987-10-20 |
| 4701529 | Single pass process for making trimethyl pyridine | Wallace E. Embrey, Randy J. LaTulip, Jim D. Earls, Garnet E. McConchie | 1987-10-20 |
| 4684693 | Thermosettable polymer or prepolymer prepared from heterocyclic materials containing a nitrogen atom and carboxylic acid mono- or dianhydride with N,N'-bis-imide | Jimmy D. Earls, Randy J. LaTulip | 1987-08-04 |
| 4668767 | Thermosettable polymer or prepolymer prepared from heterocyclic material containing a nitrogen atom and carboxylic acid mono- or dianhydride | Jimmy D. Earls, Randy J. LaTulip | 1987-05-26 |
| 4647616 | Thermosettable polymer or prepolymer prepared from herterocycle material containing a nitrogen atom and carboxylic acid mono- or dianhydride | Jimmy D. Earls, Randy J. LaTulip | 1987-03-03 |
| 4559110 | Acetophenone recovery and purification | Alfred W. Heinsohn, Craig W. Snook, Wallace E. Embrey, Garnet E. McConchie | 1985-12-17 |
| 4543388 | Thermosettable polymers or prepolymers prepared from polymethylated pyrazines and aromatic polyaldehydes and cured products therefrom | Duane S. Treybig | 1985-09-24 |
| 4515938 | Hydroxystyrylazapolymers | Randy J. LaTulip | 1985-05-07 |