Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Preparation of naphthalocyanines

Preparation of naphthalocyanines

US Patent 5656752 · Granted Aug 12, 1997

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Leather production method and products suited thereof2012
Method for vulcanizing caoutchouc or latex by applying a mixture of sulfur and a2006
Phthalocyanine and use of phthalocyanine as a marking agent2002
Use of compounds which absorb and/or fluoresce in the IR region as markers for l1999
Use of compounds which absorb and/or fluoresce in the IR region as markers for l1999
Use of compounds which absorb and/or fluoresce in the IR region as markers for l1998
Use of compounds which absorb and/or fluoresce in the IR region as markers for l1998
IR-absorbing phthalocyanines1998
Ink-ribbons comprising IR-absorbing compounds1997
Ink-ribbons comprising IR-absorbing compounds1997
Molecular sieves containing azo dyes1996
Use of compounds which absorbs and fluoresce in the IR range as crack-detecting 1996