Inventor
David M. Tschaen
Inventor
Holmdel, NJ, US
Overview
Patents· 31 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds55%
C07CAcyclic or carbocyclic compounds12%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium10%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations4%
C07BGeneral methods of organic chemistry4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
A61KPreparations for medical, dental or toiletry purposes2%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%
C07HSugars2%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture2%
PatentTitleYear
9,598,397'Process for making reverse transcriptase inhibitors'20177,482,449'Process for making spirolactone compounds'20097,368,569'Process for making spirolactone compounds'20086,605,720'Process for making spirolactone compounds'20036,559,299'Preparation and isolation of indolocarbazole glycosides'20036,479,672'Diastereoselective preparation of Michael adducts'20026,353,110'Asymmetric conjugate addition reaction'20026,172,231'Oxidation process using periodic acid'20016,172,235'Asymmetric conjugate addition reaction'20016,150,554'Oxidation process using periodic acid'20006,127,573'Oxidaton of primary alcohols to carboxylic acids with a TEMPO catalyst using NaClO.sub.2 and NaClO'20006,121,026'Enantioselective bioreduction using yeast'20006,046,327'Phosphate-mediated cyclization'20006,031,101'Oxidation process using tempo'20006,022,972'Pyridine propanoic acid derivatives'20005,998,625'Asymmetric conjugate addition reaction using a chiral additive'19995,962,688'Stereoselective deoxygenation reaction'19995,856,519'Chiral auxilary for stereoselective alkylations'19995,849,914'Compounds formed by an asymmetric conjugate addition reaction'19985,840,924'Process of preparing phenyl heterocycles useful as COX-2 inhibitors'19985,786,515'Synthesis of .alpha.-chloro or fluoro ketones'19985,708,186'Stereoselective process'19985,688,974'Process for the preparation of an endothelin antagonist'19975,585,504'Process of making cox-2 inhibitors having a lactone bridge'19965,574,186'Enantioselective synthesis of cyclic amino alcohols'19965,484,923'Process of making spirocycles and analogs thereof'19965,464,762'Asymmetric bioreduction of 6-bromo-2-tetralone to (s)-6-bromo-2 tetraol by trichosporon capitatum'19955,446,158'Process for synthesis of FK-506 and tricarbonyl intermediates'19955,292,946'In-situ preparation of diisopinocamphenyl chloroborane'19945,145,957'Stereoselective synthesis of a chiral cis 3-beta hydrogen (3R) 4-aroyloxy azetidinone'19925,124,448'Deblocking process for allyl esters with regeneratable polymer supported Pd(O)'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2009Patents assigned to MERCK & CO INC (30)· patent assignee history
1992–1995Based in Aberdeen, NJ, US· patent location history
1995–2017Based in Holmdel, NJ, US· patent location history
1998Based in Rahway, NJ, US· patent location history
1999–2009Patents assigned to BANYU PHARMA CO LTD (7)· patent assignee history
2017Patents assigned to MERCK SHARP & DOHME (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MERCK & CO INC | 30 | 1992–2009 |
| BANYU PHARMA CO LTD | 7 | 1999–2009 |
| MERCK SHARP & DOHME | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Holmdel, New Jersey, US | 26 | 1995–2017 |
| Aberdeen, New Jersey, US | 4 | 1992–1995 |
| Rahway, New Jersey, US | 1 | 1998 |