Inventor

Raymond S. Chang

Inventor

Lansdale, PA, US

Overview

13→

Patents

1985–2000

Patent span

Chemistry

Primary field (CPC C)

Patents· 13 as inventor

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

A61Kprimary

A61KPreparations for medical, dental or toiletry purposes19%

C07KPeptides17%

C12NMicroorganisms or enzymes15%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture15%

C12RIndexing scheme associated with subclasses c12c - c12q, relating to microorganisms15%

C07DHeterocyclic compounds8%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

PatentTitleYear

6,096,763'.alpha..sub.1a adrenergic receptor antagonists'2000 5,189,050'Fermentation analogs of Virginiamycin M.sub.1 to treat panic and anxiety disorder'1993 5,137,900'Therapeutic virginiamycin M.sub.1 analogs'1992 5,006,466'Fermentation analogs of virginiamycin M.sub.1'1991 4,942,230'Process for preparing synthetic virginiamycin M.sub.1 analogs'1990 4,894,370'Compositions having fermentation analogs of virginiamycin M.sub.1 as active ingredient'1990 4,859,690'Therapeutic virginiamycin M.sub.1 analogs'1989 4,772,595'Synthetic virginiamycin M1 analogs'1988 4,762,923'Fermentation analogs of virginiamycin M1'1988 4,695,544'Process for the preparation of cholecystokinin antagonists'1987 4,684,646'2-acylaminomethyl-1,4-benzodiazepine derivatives as CCK-antagonists'1987 4,684,645'Benzofused lactams as cholecystokinin antagonists'1987 4,530,790'Cholecystokinin antagonists'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2000Patents assigned to MERCK & CO INC (13)· patent assignee history

1985–1987Based in Edison, NJ, US· patent location history

1987–2000Based in Lansdale, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MERCK & CO INC	13	1985–2000

Locations

Location	Patents	Span
Lansdale, Pennsylvania, US	10	1987–2000
Edison, New Jersey, US	3	1985–1987