Inventor

Yueqian Zhen

Inventor
Paoli, PA, US

Overview

19→
Patents
1995–2019
Patent span
Human necessities
Primary field (CPC A)

Patents· 19 as inventor

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

C11Dprimary
C11DDetergent compositions27%
A61KPreparations for medical, dental or toiletry purposes17%
A61QSpecific use of cosmetics or similar toiletry preparations17%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry15%
A01NPreservation of bodies of humans or animals or plants or parts thereof10%
A23BPreservation of foods, foodstuffs or non-alcoholic beverages8%
A23VIndexing scheme relating to foods, foodstuffs or non-alcoholic beverages and lactic or propionic acid bacteria used in foodstuffs or food preparation4%
Y10TTechnical subjects covered by former us classification2%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–1998Patents assigned to PROCTER & GAMBLE (4)· patent assignee history
1995–1998Based in West Chester, OH, US· patent location history
1998Based in Cincinnati, OH, US· patent location history
2006–2009Patents assigned to INT FLAVORS & FRAGRANCES INC (9)· patent assignee history
2006–2019Based in Paoli, PA, US· patent location history
2006–2009Based in Tredyffrin, PA, US· patent location history
2015Patents assigned to JACOBSON RICHARD M (1)· patent assignee history
2015Patents assigned to ROHM & HAAS (1)· patent assignee history
2017–2019Patents assigned to AGROFRESH INC (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
INT FLAVORS & FRAGRANCES INC92006–2009
AGROFRESH INC42017–2019
PROCTER & GAMBLE41995–1998
JACOBSON RICHARD M12015
ROHM & HAAS12015
Locations
LocationPatentsSpan
Paoli, Pennsylvania, US122006–2019
West Chester, OH, US41995–1998
Tredyffrin, Pennsylvania, US22006–2009
Cincinnati, OH, US11998