Razdan; Raj Kumar
Patent Applications and Registrations
Patent applications and USPTO patent grants for Razdan; Raj Kumar.The latest application filed is for "oxo c-ring benzopyrans".
- Razdan; Raj Kumar - Belmont MA
| Patent | Date |
|---|---|
| Oxo C-ring benzopyrans Grant 4,051,152 - Razdan , et al. September 27, 1 | 1977-09-27 |
| Process for the preparation of (-)-6a,10a-trans-6a,7,8,10a-tetrahydrodibenzo[b,d]-pyrans Grant 4,025,516 - Razdan , et al. May 24, 1 | 1977-05-24 |
| Heterocyclic esters of benzopyrans Grant 3,941,782 - Harris , et al. March 2, 1 | 1976-03-02 |
| 1-[2,6-Dihydroxy-4-hydrocarbyl-benzoyl]polymethyleneimines and derivatives Grant 3,917,617 - Razdan , et al. November 4, 1 | 1975-11-04 |
| 1 OR 2-Mono and dialkyl substituted thienobenzopyrans Grant 3,895,034 - Winn , et al. July 15, 1 | 1975-07-15 |
| Direct Synthesis Of (-)-trans-.delta. Tetrahydrocannabinol From Olivetol And (+)-trans-.delta. -carene Oxide Grant 3,734,930 - Razdan , et al. May 22, 1 | 1973-05-22 |
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