Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8563215 | Diazonaphthoquinonesulfonic acid bisphenol derivative useful in photo lithographic sub micron patterning and a process for preparation thereof | Vaidya Jayathirtha Rao, Mannepalli Lakshmi Kantam, Sunkara Sakunthala Madhavendra, Virendra Kumar Dwivedi | 2013-10-22 |
| 7355021 | Single pot process for the preparation of diazonaphthoquinonesulfonyl ester | Boddu Ananda Rao, Maruthi Janaki Ram Reddy, Chiguru Srinivas, Chilukuri Ramesh, Vaidya Jayathirtha Rao | 2008-04-08 |
| 6559291 | Process for the preparation of diazonaphthoquinonesulfonylchlorides using diphosgene and triphosgene | Maruthi Janaki Ram Reddy, Vaidya Jayathirtha Rao | 2003-05-06 |