Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for preparing poly (2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate)

Process for preparing poly (2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate)

US Patent 6255437 · Granted Jul 3, 2001

Estimated economic value: $7,568,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Copolymerizable methine and anthraquinone compounds and articles containing them2014
Copolymerizable methine and anthraquinone compounds and articles containing them2013
Copolymerizable methine and anthraquinone compounds and articles containing them2013
Ophthalmic devices having a highly selective violet light transmissive filter an2012
Ophthalmic devices having a highly selective violet light transmissive filter an2011
Polyvinyl ultraviolet light absorbers for personal care2011
Copolymerizable azo compounds and articles containing them2008
Ophthalmic devices having a highly selective violet light transmissive filter an2007
Ethylenically-unsaturated blue anthraquinone dyes2007
Ethylenically-unsaturated blue anthraquinone dyes2007
Ethylenically-unsaturated red anthraquinone dyes2006
Method for preparing light-absorbing polymeric compositions2004