Inventor
VOLKMANN ROBERT A
US66 patents
⚠️ This page may combine multiple inventors who share the name “VOLKMANN ROBERT A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PFIZER
27 patentsUS4703052AOct 27, 1987
Hypoglycemic thiazolidinediones
PFIZER79 citations93
US5037846AAug 6, 1991
Indolyl-3 polyamines and their use as antagonists of excitatory amino acid neurotransmitters
PFIZER26 citations92
US6057364AMay 2, 2000
Fluoro-substituted adamantane derivatives
PFIZER40 citations87
US5227397AJul 13, 1993
Polyamines and polypeptides useful as antagonists of excitatory amino acid neuro-transmitters and/or as blockers of calcium channels
PFIZER19 citations82
US5185369AFeb 9, 1993
Synthetic heteroaryl polyamines as excitatory amino acid neurotransmitter antagonists
PFIZER19 citations82
US5013729AMay 7, 1991
Diastereomeric 5R,6S-6-(1R-hydroxyethyl)-2-(cis-1-oxo-3-thiolanylthio)-2-penem-3-carboxylic acids
PFIZER18 citations82
US4864046ASep 5, 1989
Process for optically active 3-thiolanyl sulfonate esters
PFIZER18 citations82
US4739047AApr 19, 1988
Intermediates for 2-(1-oxo-3-thiolanyl)-2-penem antibiotics
PFIZER22 citations80
US5319103AJun 7, 1994
Intermediate diastereomeric 5R,6S-6-(1R-hydroxyethyl)-2-(cis-1-oxo-3-thiolanylthio)-2-penem-carboxylic acids
PFIZER12 citations74
US5191077AMar 2, 1993
Diastereomeric 5R,6S-6-(1R-hydroxyethyl)-2-(cis-1-oxo-3-thiolanylthio)-2-penem-3-carboxylic acids
PFIZER13 citations74
US4940823AJul 10, 1990
Process for optically active 3-thiolanyl sulfonate esters
PFIZER12 citations74
US4738972AApr 19, 1988
Hypoglycemic thiazolidinediones
PFIZER18 citations74
US5122596AJun 16, 1992
Polypeptides useful as blockers of calcium channels
PFIZER15 citations73
US5854232ADec 29, 1998
Acyclic anc cyclic amides as neurotransmitter release enhancers
PFIZER7 citations72
US5948781ASep 7, 1999
Adamantyl substituted oxindoles as pharmaceutical agents
PFIZER3 citations63
US4921972AMay 1, 1990
Process for optically active 3-thiolanyl sulfonate esters
PFIZER2 citations63
US4772717ASep 20, 1988
Novel process for the preparation of biotin
PFIZER2 citations63
US4468516AAug 28, 1984
Process for the preparation of biotin
PFIZER6 citations63
US5599559AFeb 4, 1997
Calcium channel blocking polypeptide from agelenopsis aperta and therapeutic methods employing it
PFIZER2 citations61
US4588527AMay 13, 1986
Process for preparing penicillanic acid 1,1-dioxide derivatives
PFIZER4 citations61
US4499017AFeb 12, 1985
Beta-lactamase inhibiting 6-(alkoxyamino-methyl) penicillanic acid 1,1-dioxide and derivatives
PFIZER5 citations61
US5756462AMay 26, 1998
Pore forming peptides from Geolycosa riogrande
PFIZER3 citations60
US4870170ASep 26, 1989
Process for 2-(1-oxo-3-thiolanyl)-2-penem antibiotics
PFIZER5 citations60
US4794179ADec 27, 1988
2-(1-oxo-3-thiolanyl)-2-penem antibiotics
PFIZER2 citations60
US4762920AAug 9, 1988
6,6-Dihalopenicillanic acid 1,1-dioxides
PFIZER3 citations60
US4714761ADec 22, 1987
6,6-dihalopenicillanic acid 1,1-dioxides and process
PFIZER5 citations60
US5132300AJul 21, 1992
Beta-lactam elastase inhibitors
PFIZER6 citations59
CADENT THERAPEUTICS INC
11 patentsUS10973825B2Apr 13, 2021
Thienopyrimidinone NMDA receptor modulators and uses thereof
CADENT THERAPEUTICS INC6 citations84
US10626122B2Apr 21, 2020
Heteroaromatic NMDA receptor modulators and uses thereof
CADENT THERAPEUTICS INC8 citations84
US10500205B2Dec 10, 2019
Thienopyrimidinone NMDA receptor modulators and uses thereof
CADENT THERAPEUTICS INC10 citations84
US10752633B2Aug 25, 2020
Heteroaromatic NMDA receptor modulators and uses thereof
CADENT THERAPEUTICS INC9 citations81
US10584131B2Mar 10, 2020
Heteroaromatic NMDA receptor modulators and uses thereof
CADENT THERAPEUTICS INC9 citations81
US11541057B2Jan 3, 2023
Thienopyrimidinone NMDA receptor modulators and uses thereof
CADENT THERAPEUTICS INC1 citations73
US11236104B2Feb 1, 2022
Heteroaromatic NMDA receptor modulators and uses thereof
CADENT THERAPEUTICS INC4 citations73
US11542264B2Jan 3, 2023
Heteroaromatic NMDA receptor modulators and uses thereof
CADENT THERAPEUTICS INC1 citations70
US11274107B2Mar 15, 2022
NMDA receptor modulators and uses thereof
CADENT THERAPEUTICS INC3 citations70
US11116749B2Sep 14, 2021
Selective octahydro-cyclopenta[c]pyrrole negative modulators of NR2B
CADENT THERAPEUTICS INC0 citations62
US10781174B2Sep 22, 2020
N-alkylaryl-5-oxyaryl-octahydro-cyclopenta[C]pyrrole negative allosteric modulators of NR2B
CADENT THERAPEUTICS INC1 citations62
NOVARTIS AG
5 patentsUS12161624B2Dec 10, 2024
Selective octahydro-cyclopenta[c]pyrrole negative modulators of NR2B
NOVARTIS AG1 citations73
US12358929B2Jul 15, 2025
NMDA receptor modulators and uses thereof
NOVARTIS AG0 citations62
US12162890B2Dec 10, 2024
Heteroaromatic NMDA receptor modulators and uses thereof
NOVARTIS AG0 citations62
US12145909B2Nov 19, 2024
N-alkylaryl-5-oxyaryl-octahydro-cyclopenta[C]pyrrole negative allosteric modulators of NR2B
NOVARTIS AG1 citations62
US11648253B2May 16, 2023
Thienopyrimidinone NMDA receptor modulators and uses thereof
NOVARTIS AG0 citations62
CYBREXA 2 INC
2 patentsLUC THERAPEUTICS
1 patentCYBREXA 1 INC
1 patentLIXTE BIOTECHNOLOGY INC
1 patentCYBREXA 3 INC
1 patentLUC THERAPEUTICS INC
1 patentShowing the top 50 of 66 patents by PatentIndex Score.