Inventor
Robert J. Kupper
Inventor
East Greenwich, RI, US
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds28%
A61KPreparations for medical, dental or toiletry purposes24%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations24%
C07CAcyclic or carbocyclic compounds8%
C07KPeptides4%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium3%
B27KProcesses, apparatus or selection of substances for impregnating, staining, dyeing, bleaching of wood or similar materials, or treating of wood or similar materials with permeant liquids, not otherwise provided for1%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests1%
Y10TTechnical subjects covered by former us classification1%
PatentTitleYear
11,130,765Opioid ketal compounds and uses thereof202111,091,496Opioid ketal compounds and uses thereof202110,988,480Opioid ketal compounds and uses thereof202110,696,684Process for preparing oxycodone hydrochloride having less than 25 PPM 14-hydroxycodeinone202010,689,389Process for preparing oxycodone compositions202010,624,859Systems and methods for increasing stability of dronabinol compositions202010,407,434Process for preparing oxycodone compositions201910,259,819Process for preparing oxycodone compositions20199,777,011'Process for preparing oxycodone compositions'20179,522,919'Oxycodone compositions'20169,073,933'Oxycodone hydrochloride having less than 25 PPM 14-hydroxycodeinone'20158,822,687'8a,14-dihydroxy-7,8-dihydrocodeinone'20147,939,543'Method of reducing α, β unsaturated ketones in opioid compositions'20117,683,072'Oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone'20107,674,798'Oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone'20107,674,800'Oxycodone hydrochloride having less than 25 PPM 14-hydroxycodeinone'20107,674,799'Oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone'20107,572,461'Borer-resistant wood, wood products, and wooden structures and methods'20097,129,248'Process for preparing oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone'20067,084,150'Analogs and prodrugs of buprenorphine'20066,958,398'Methods for making thebaine or its acid salts'20056,784,319'Synthesis of ()-2-((dimethylamino)methyl)-1-(aryl)cyclohexanols'20046,649,783'Synthesis of (/-)-2-((dimethylamino)methyl)-1-(aryl)cyclohexanols'20034,873,359'Process for preparing as partyl-phenylalanine dipeptides'19894,855,455'Preparation of amino acid derivatives'19894,851,588'Novel process for the preparation of bronopol'19894,820,881'Decolorization'19894,810,817'Aspartyl-beta substituted phenylalanine dipeptides'19894,801,742'N-formylation of amino carboxylates with alkyl formates'19894,710,583'Dipeptides and process'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1989Patents assigned to GRACE W R & CO (7)· patent assignee history
1987–1989Based in Mount Airy, MD, US· patent location history
2003–2020Based in East Greenwich, RI, US· patent location history
2006–2015Based in Coventry, RI, US· patent location history
2009–2021Based in Warwick, RI, US· patent location history
2010–2020Patents assigned to PURDUE PHARMA LP (13)· patent assignee history
2014–2020Patents assigned to Purdue Pharmaceuticals LP (8)· patent assignee history
2016–2021Patents assigned to RHODES TECH (10)· patent assignee history
2016–2020Patents assigned to THE P F LABORATORIES INC (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PURDUE PHARMA LP | 13 | 2010–2020 |
| RHODES TECH | 10 | 2016–2021 |
| Purdue Pharmaceuticals LP | 8 | 2014–2020 |
| GRACE W R & CO | 7 | 1987–1989 |
| THE P F LABORATORIES INC | 6 | 2016–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| East Greenwich, RI, US | 11 | 2003–2020 |
| Coventry, RI, US | 7 | 2006–2015 |
| Mount Airy, Maryland, US | 7 | 1987–1989 |
| Warwick, RI, US | 5 | 2009–2021 |