Inventor

Yuanfeng Liang

Inventor

Chadds Ford, PA, US

Overview

9→

Patents

1998–2018

Patent span

Chemistry

Primary field (CPC C)

Patents· 9 as inventor

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

C08Gprimary

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds32%

C08LCompositions of macromolecular compounds16%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%

C07CAcyclic or carbocyclic compounds5%

C08BPolysaccharides5%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients5%

C09DCoating compositions, e.g. paints, varnishes or lacquers5%

C11DDetergent compositions5%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture5%

PatentTitleYear

10,059,779Enzymatically polymerized gelling dextrans2018 7,888,405'Aliphatic-aromatic polyesters, and articles made therefrom'2011 7,855,244'Flame retardant polytrimethylene terephthalate composition'2010 6,737,481'Ester-modified dicarboxylate polymers'2004 6,426,398'Poly (trimethylene terephthalate) polymer composition'2002 6,335,421'Preparation of poly(trimethylene terephthalate) with low level of di(1,3-propylene glycol)'2002 6,281,325'Preparation of poly(trimethylene terephthalate)'2001 6,255,442'Esterification process'2001 5,840,957'Transesterification process using lanthanum compound catalyst'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2018Patents assigned to DU PONT (9)· patent assignee history

1998–2002Based in Newark, DE, US· patent location history

2001–2018Based in Chadds Ford, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DU PONT	9	1998–2018

Locations

Location	Patents	Span
Chadds Ford, Pennsylvania, US	6	2001–2018
Newark, Delaware, US	3	1998–2002