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Inventor

Andrea Keys

Inventor
Yardley, PA, US

Overview

4→
Patents
2003–2015
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C09Dprimary
C09DCoating compositions, e.g. paints, varnishes or lacquers22%
C23CCoating metallic material22%
C08LCompositions of macromolecular compounds17%
D04HMaking textile fabrics, e.g. from fibres or filamentary material17%
D21HPulp compositions17%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
8,980,015'Non-chrome passivation of steel'20157,344,607'Non-chromate conversion coating treatment for metals'20087,317,053'Compositions for imparting desired properties to materials'20086,586,520'Compositions for imparting desired properties to materials'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2008Patents assigned to HERCULES INC (2)· patent assignee history
2003–2008Based in Bensalem, PA, US· patent location history
2008Patents assigned to GE BETZ INC (1)· patent assignee history
2008–2015Based in Yardley, PA, US· patent location history
2015Patents assigned to CHEMTALL CORP (1)· patent assignee history
2015Patents assigned to KEYS ANDREA (1)· patent assignee history
2015Patents assigned to MELZER JEFFREY I (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HERCULES INC22003–2008
CHEMTALL CORP12015
GE BETZ INC12008
KEYS ANDREAself12015
MELZER JEFFREY I12015
Locations
LocationPatentsSpan
Yardley, Pennsylvania, US22008–2015
Bensalem, Pennsylvania, US22003–2008