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Inventor

Robert E. Halvachs

Inventor
Belleville, IL, US

Overview

11→
Patents
1990–2016
Patent span
Chemistry
Primary field (CPC C)

Patents· 11 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Dprimary
C07DHeterocyclic compounds39%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations26%
Y02PClimate change mitigation technologies in the production or processing of goods13%
A61KPreparations for medical, dental or toiletry purposes9%
C07CAcyclic or carbocyclic compounds9%
C07BGeneral methods of organic chemistry4%
PatentTitleYear
9,415,044'Process for the preparation of quaternary N-alkyl morphinan alkaloid salts'20169,040,726'Process for the preparation of quaternary N-alkyl morphinan alkaloid salts'20158,669,366'Process for the preparation of quaternary N-alkyl morphinan alkaloid salts'20148,623,888'3-oxy-hydromorphone derivatives'20148,383,649'Crystalline forms of naltrexone methobromide'20138,148,528'Processes and compounds for the preparation of normorphinans'20127,498,434'Two-phase method for the synthesis of selected pyrazolopyrimidines'20097,498,439'Synthesis of heteroaryl acetamides from reaction mixtures having reduced water content'20097,285,665'Process for the preparation of quaternary N-alkyl morphinan alkaloid salts'20076,399,829'Synthesis and purification of (r*,r*)-2- (dimethylamino) methyl-1-(3-methoxyphenyl) cyclohexanol hydrochloride'20024,918,251'Preparation of 2-halofluorobenzene'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2009Patents assigned to MALLINCKRODT INC (5)· patent assignee history
1990–2016Based in Belleville, IL, US· patent location history
2012–2016Patents assigned to MALLINCKRODT LLC (6)· patent assignee history
2012–2015Patents assigned to CANTRELL GARY L (5)· patent assignee history
2012–2015Patents assigned to HALVACHS ROBERT E (5)· patent assignee history
2012–2015Patents assigned to WANG PETER X (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MALLINCKRODT LLC62012–2016
CANTRELL GARY L52012–2015
HALVACHS ROBERT Eself52012–2015
MALLINCKRODT INC51990–2009
WANG PETER X42012–2015
Locations
LocationPatentsSpan
Belleville, Illinois, US111990–2016