derived from divalent or polyvalent alcohols

Introduced: September 1968

Full Title

Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent > Anionic compounds > Sulfonic acids or sulfuric acid esters; Salts thereof > derived from divalent or polyvalent alcohols

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class C11,2013–2023, worldwide · Source: EPO PATSTAT

P&G (PROCTER & GAMBLE COMPANY) US 5,930
HENKEL DE 3,288
BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,162
ECOLAB US 1,454
UNILEVER NL 1,430
NOVOZYMES DK 1,366
UNILEVER IP HOLDINGS NL 1,227
CONOPCO, INC., D/B/A UNILEVER US 1,022
KAO CORPORATION 947
KAO CORPORATION JP 853

Top Applicants (CPC)

Class C11,2013–2023, worldwide · Source: EPO PATSTAT

P&G (PROCTER & GAMBLE COMPANY) US 6,498
HENKEL DE 3,445
BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,409
ECOLAB US 1,614
NOVOZYMES DK 1,609
UNILEVER NL 1,468
UNILEVER IP HOLDINGS NL 1,246
CONOPCO, INC., D/B/A UNILEVER US 1,048
UNILEVER GB 1,039
FIRMENICH CH 964