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Inventor

Robert S. Cheeseman

Inventor
Phoenixville, PA, US

Overview

4→
Patents
1988–2002
Patent span
Human necessities
Primary field (CPC A)

Patents· 4 as inventor

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

C07Dprimary
C07DHeterocyclic compounds50%
A61KPreparations for medical, dental or toiletry purposes38%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations13%
PatentTitleYear
6,342,503'1N-alkyl-n-arylpyrimidinamines and derivatives thereof'20026,107,301'1N-alkyl-N-arylpyrimidinamines and derivatives thereof'20005,254,569'(Amidomethyl)nitrogen heterocyclic analgesics'19934,728,739'Hypoglycemic thiazolidinediones'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to AMERICAN HOME PROD (1)· patent assignee history
1988Based in Swedeland, PA, US· patent location history
1993Patents assigned to DU PONT MERCK PHARMA (1)· patent assignee history
1993–2002Based in Phoenixville, PA, US· patent location history
2000–2002Patents assigned to DU PONT PHARM CO (2)· patent assignee history
2000Based in Newtown Square, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DU PONT PHARM CO22000–2002
AMERICAN HOME PROD11988
DU PONT MERCK PHARMA11993
Locations
LocationPatentsSpan
Phoenixville, Pennsylvania, US21993–2002
Newtown Square, Pennsylvania, US12000
Swedeland, Pennsylvania, US11988