C11D 1/28

Sulfonation products derived from fatty acids or their derivatives

Official title: Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides

C11D1/28 (Sulfonation products derived from fatty acids or their derivatives) appears on 424 US grants and 286 published applications in this corpus.

Search patents in C11D
Granted patents
424
Published applications
286
Assignees
141
Inventors
1,050
Latest grant
22 Sep 2026

Filings by year

C11D 1/28: granted patents and published applications per publication year
YearGranted patentsPublished applications
197640
197720
197830
197920
198040
198120
198200
198340
198460
1985100
198650
198790
198860
198990
199040
199170
199240
1993100
199490
1995130
1996220
1997220
1998200
1999220
2000120
2001220
2002108
2003139
200485
2005411
200626
200705
200808
200973
2010720
2011119
201288
2013414
201418
2015127
20161117
20171112
2018810
2019612
2020613
2021914
20221111
2023818
20241123
20251321
20261014

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Recent patents

Most cited

By later US patents