Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5288877 | Continuous process for preparing indolenine compounds | Bruce R. Anderson | 1994-02-22 |
| 5019659 | Method of separating 2-nitrosophenol isomer from admixture with 4-nitrosophenol isomer | James A. Manner | 1991-05-28 |
| 4931220 | Organic photochromic pigment particulates | Ronald L. Haynes, Jonathan G. Lasch | 1990-06-05 |
| 4634767 | Method for preparing spiro(indoline)-type photochromic compounds | Douglas S. McBain | 1987-01-06 |
| 4605545 | Method for producing sodium dithionite | William B. Darlington | 1986-08-12 |