Cannabis patents 1942–2010
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2304669 1942 Isolation of cannabidiol — 20110217.005017
2354492 1944 Marihuana active compound — 20110217.005419
2419934 1947 Optically active tetrahydrodibenzopyrans having marihuana activity and process for .. — 20110217.010128
2419935 1947 Marihuana active compounds — 20110217.010934
2419936 1947 Preparation of compounds with marihuana activity — 20110217.011517
2509386 1950 Dibenzopyran marihuana-like compounds — 20110217.012129
2509387 1950 Dibenzopyran marihuana-like compounds — 20110217.012513
3668224 1972 Process of producing 6a, 10a-trans-6a,7,8,10a-tetrahydrodibenzo (b,d)-pyrans — 20110217.013244
3728360 1973 Ester derivatives of tetrahydrocannabinol — 20110217.013646
3734930 1973 Direct synthesis of (-)-trans-delta-9-tetrahydrocannabinol from olivetol and (+)-tr.. — 20110217.005434
4025516 1977 Process for the preparation of (-)-6a,10a-trans-6a,7,8,10a-tetrahydrodibenzo[b,d]-p.. — 20110217.022419
4116979 1978 Process for the preparation of (-)-6a,10a-trans-6a,7,8,10a-tetrahydrodibenzo[b,d]-p.. — 20110217.030800
4126694 1978 Composition and method for treating glaucoma — 20110217.031302
4126695 1978 Anti-glaucoma composition and method — 20110217.031624
4179517 1979 Novel tetrahydrocannabinol type compounds — 20110217.032121
4189491 1980 Tetrahydrocannabinol in a method of treating glaucoma — 20110217.032351
4195078 1980 Nabilone granulation — 20110219.131638
4279824 1981 Method and apparatus for processing herbaceous plant materials including the plant .. — 20110221.005824
4315862 1982 Process for preparing cannabichromene — 20110219.132528
4327028 1982 Composition of matter — 20110219.132854
4464378 1984 Method of administering narcotic antagonists and analgesics — 20110219.134318
4476140 1984 Composition and method for treatment of glaucoma — 20110219.133925
4758597 1988 Carenadiol and derivatives — 20110220.235422
4837228 1989 Antiinflammatory and antimicrobial compounds and compositions — 20110219.135422
4847290 1989 Delta 1-thc-7-oic acid and analgesic and anti-inflammatory agents — 20110219.140914
4876276 1989 (3s-4s)-7-hydroxy-delta-6-tetrahydrocannabinols — 20110219.141600
4933363 1990 Method for effecting systemic delivery of delta-9-tetrahydrocannabinol — 20110219.144031
5227537 1993 Method for the production of 6,12-dihydro-6-hydroxy-cannabidiol and the use thereof.. — 20110221.005135
5237057 1993 Tetrahydrocannabinol derivatives and protein and polypeptide tetrahydrocannabinol d.. — 20110219.144538
5292899 1994 Synthesis of 11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid glucuronide — 20110219.145249
5302703 1994 Tetrahydrocannabinol derivatives and protein and polypeptide tetrahydrocannabinol d.. — 20110219.145809
5338753 1994 (3r,4r)-delta-6-tetrahydrocannabinol-7-oic acids useful as antiinflammatory agents .. — 20110219.150617
5342971 1994 Process for the preparation of dibenzo[b,d]pyrans — 20110219.150655
5389375 1995 Stable suppository formulations effecting bioavailability of delta-9-thc — 20110219.151015
5440052 1995 Compositions useful as a cannabinoid receptor probe — 20110219.151453
5508037 1996 Stable suppository formulations effecting bioavailability of delta-9-thc — 20110219.151931
5532237 1996 Indole derivatives with affinity for the cannabinoid receptor — 20110219.152606
5538993 1996 Certain tetrahydrocannabinol-7-oic acid derivatives — 20110219.152901
5596106 1997 Cannabinoid receptor antagonists — 20110219.153207
5605906 1997 Cannabinoid receptor agonists — 20110219.153325
5605928 1997 Antiemetic compositions — 20110219.153523
5631297 1997 Anandamides useful for the treatment of intraocular hypertension… — 20110219.160906
5635530 1997 (3s,4s)-delta-6-tetrahydrocannabinol-7-oic acids and derivatives thereof, processor.. — 20110219.154139
5688825 1997 Anandamide amidase inhibitors as analgesic agents — 20110219.161202