Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5252473 | Production of esters of lactic acid, esters of acrylic acid, lactic acid, and acrylic acid | Paul C. Walkup, Charles A. Rohrmann, Richard T. Hallen | 1993-10-12 |
| 5071754 | Production of esters of lactic acid, esters of acrylic acid, lactic acid, and acrylic acid | Paul C. Walkup, Charles A. Rohrmann, Richard T. Hallen | 1991-12-10 |
| 5028240 | Separation and concentration of lower alcohols from dilute aqueous solutions | Raymond H. Moore, Eddie G. Baker, Richard T. Hallen | 1991-07-02 |