Inventor

Sienling Ong

Inventor
Hofheim, DE

Overview

16→
Patents
1976–2002
Patent span
Chemistry
Primary field (CPC C)

Patents· 16 as inventor

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

C08Lprimary
C08LCompositions of macromolecular compounds16%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%
D06PDyeing or printing textiles14%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds11%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry9%
C08JWorking-up9%
B41MPrinting, duplicating, marking, or copying processes5%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments5%
C09DCoating compositions, e.g. paints, varnishes or lacquers5%
Y10TTechnical subjects covered by former us classification5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1987Patents assigned to HOECHST AG (9)· patent assignee history
1976Based in Hofheim-Lorsbach, DE· patent location history
1979–1987Based in Hofheim, DE· patent location history
1982–2001Patents assigned to MOBIL OIL CORP (5)· patent assignee history
1982–1984Based in Somerville, NJ, US· patent location history
1994–2002Based in Warren, NJ, US· patent location history
2001–2002Patents assigned to EXXONMOBIL OIL CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HOECHST AG91976–1987
MOBIL OIL CORP51982–2001
EXXONMOBIL OIL CORP22001–2002
Locations
LocationPatentsSpan
Hofheim, DE81979–1987
Warren, New Jersey, US51994–2002
Somerville, New Jersey, US21982–1984
Hofheim-Lorsbach, DE11976