Sulfonated compounds {esters thereof, e.g. sultones}

Sulfonated compounds {esters thereof, e.g. sultones} · Cooperative Patent Classification (CPC)

Textile and paper production, treatment, and products.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeD06M13/256
Official titleSulfonated compounds {esters thereof, e.g. sultones}
Display labelSulfonated compounds {esters thereof, e.g. sultones}
Total patents98

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
201510
20165
20176
20182
20193
202015
20216
20229
202310
202418
202514

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC D06M13/256?
CPC D06M13/256 is the Cooperative Patent Classification code for “Sulfonated compounds {esters thereof, e.g. sultones}.”
How many patents are filed under CPC D06M13/256 (Sulfonated compounds {esters thereof, e.g. sultones})?
Our database includes 98 publications tagged with this CPC code.
Is patent activity under CPC D06M13/256 growing?
Publication counts under this code: 18 in 2024 vs 14 in 2025 (latest complete years).