Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7163582 | System and method of producing Bisphenol-A (BPA) using direct crystallization of BPA in a single crystallization stage | Drow Lionel O'Young, Vaibhav Kelkar | 2007-01-16 |
| 6960697 | System and method of producing bisphenol-A (BPA) | Drow Lionel O'Young, Vaibhav Kelkar | 2005-11-01 |
| 4941893 | Gas separation by semi-permeable membranes | George E. Keller, II | 1990-07-17 |