Granted Patent
B2
US 12,715,834 · App. 17/787,439 · Granted Aug 25, 2026
Ether carboxylic acid composition
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Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Nov 28, 2022
From: MYRDEK, THOMAS; VAN DER VEEN, REINOUT; STAPELS, MICHAEL; TAKAHASHI, MASAKATSU
To: KAO CHEMICALS GMBH
Reel/Frame 062003/0638 →
Priority Claims (1)
EP 19219824
· Dec 27, 2019
· regional
Continuity (1)
References Cited (25)
US 3992443A
· Springmann
· 1976
[cited by applicant]
US 4625057A
· Springmann
· 1986
[cited by applicant]
US 6034257A
· Oftring et al.
· 2000
[cited by applicant]
US 7179452B2
· Muller et al.
· 2007
[cited by applicant]
US 9909081B2
· Scanlon et al.
· 2018
[cited by applicant]
US 20060047141A1
· Behler et al.
· 2006
[cited by applicant]
US 20110154724A1
· Martyak et al.
· 2011
[cited by applicant]
US 20170009172A1
· Bender et al.
· 2017
[cited by applicant]
CN 106883833
· 2019
[cited by applicant]
CS 256198
· 1987
[cited by applicant]
EP 1329214
· 2003
[cited by applicant]
EP 1479754
· 2004
[cited by applicant]
EP 1739161
· 2007
[cited by applicant]
EP 2612652
· 2013
[cited by applicant]
JP H03103500
· 1991
[cited by applicant]
WO 2002081381
· 2002
[cited by applicant]
WO 2009040370A1
· 2009
[cited by applicant]
WO 2016093291
· 2016
[cited by applicant]
Office Action in corresponding Chinese Patent Application Serial No. 202080090414.1, dated May 27, 2024 (English translation attached).
[cited by applicant]
Amarego, et al., “Common physical techniques used in purification”, Purification of Laboratory Chemicals, 7th Edition, 2013, pp. 1-70.
[cited by applicant]