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Inventor

Narayanasamy Gurusamy

Inventor
Ballwin, MO, US

Overview

7→
Patents
1990–2015
Patent span
Chemistry
Primary field (CPC C)

Patents· 7 as inventor

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

C07Cprimary
C07CAcyclic or carbocyclic compounds44%
C07DHeterocyclic compounds33%
Y02PClimate change mitigation technologies in the production or processing of goods22%
PatentTitleYear
9,040,705'Preparation of saturated ketone morphinan compounds'20155,254,776'Synthesis of bromobiphenyls'19935,149,875'Halogenation of aromatic amine compounds'19925,053,542'Catalytic bromination of 2-fluoroaniline'19914,996,355'Novel intermediates for the production of 2,4,5-trifluorobenzoyl fluoride'19914,992,564'Preparation of 6-substituted 4-chromanones'19914,918,203'Preparation of 6-substituted 4-chromanones'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1991Patents assigned to MALLINCKRODT INC (3)· patent assignee history
1990–2015Based in Ballwin, MO, US· patent location history
1991–1993Patents assigned to MALLINCKRODT SPEC CHEM (3)· patent assignee history
1991Based in Baldwin, MO, US· patent location history
2015Patents assigned to GURUSAMY NARAYANASAMY (1)· patent assignee history
2015Patents assigned to JIANG TAO (1)· patent assignee history
2015Patents assigned to JUNG CATHERINE K (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MALLINCKRODT INC31990–1991
MALLINCKRODT SPEC CHEM31991–1993
GURUSAMY NARAYANASAMYself12015
JIANG TAO12015
JUNG CATHERINE K12015
Locations
LocationPatentsSpan
Ballwin, MO, US61990–2015
Baldwin, MO, US11991