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Inventor

Durga V. Subramanian

Inventor
Lexington, MA, US

Overview

3→
Patents
1993–2013
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C04Bprimary
C04BLime, magnesia33%
C07CAcyclic or carbocyclic compounds17%
G01NInvestigating or analysing materials by determining their chemical or physical properties17%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management17%
Y10TTechnical subjects covered by former us classification17%
PatentTitleYear
8,518,176'Suppression of antagonistic hydration reactions in blended cements'20137,927,418'Coordinated metal compounds for reducing chromium'20115,242,834'Analysis of aluminum in amino acids by high performance liquid chromatography'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to HAMPSHIRE CHEMICAL CORP (1)· patent assignee history
1993Based in Groton, MA, US· patent location history
2011–2013Patents assigned to GRACE W R & CO (2)· patent assignee history
2011–2013Based in Lexington, MA, US· patent location history
2013Patents assigned to CHEUNG JOSEPHINE (1)· patent assignee history
2013Patents assigned to GALLAGHER JOHN L (1)· patent assignee history
2013Patents assigned to KUO LAWRENCE L (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GRACE W R & CO22011–2013
CHEUNG JOSEPHINE12013
GALLAGHER JOHN L12013
HAMPSHIRE CHEMICAL CORP11993
KUO LAWRENCE L12013
Locations
LocationPatentsSpan
Lexington, Massachusetts, US22011–2013
Groton, Massachusetts, US11993