Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Hexa-cyclic camptothecin derivatives

Hexa-cyclic camptothecin derivatives

US Patent 4939255 · Granted Jul 3, 1990

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Printing control device, printing apparatus, control method of printing control 2019
Allocating data to plurality storage devices2017
Pyrazolopyrimidine derivative2012
Method for improving pin compatibility in microcomputer emulation equipment2004
Pentacyclic Compound2003
Pyrazole derivatives and salts thereof2003
Pyrazole derivatives and salts thereof2003
Pyrazole derivatives2003
Pyrazole derivatives2003
Condensed-hexacyclic compounds and a process therefor2003
Pentacyclic compound2003
Condensed-hexacyclic compounds and a process therefor2003