Patents

Search tools Text Classification Chemistry Measure Numbers Full documents Title Abstract Claims All Any Exact Not Add AND condition These CPCs and their children These exact CPCs Add AND condition
Exact Exact Batch Similar Substructure Substructure (SMARTS) Full documents Claims only Add AND condition
Add AND condition
Application Numbers Publication Numbers Either Add AND condition

Classifications

C07C7/11 Purification; Separation; Use of additives by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids

Landscapes

Show more

CS151000B2

Czechoslovakia


Worldwide applications
1969 DE ES AT CH YU GB 1970 NL CS RO BR US BE FR

Application CS65*YA events
1970-01-05
Application filed