Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method for preparing phenolic foams using anhydrous aryl sulfonic acid catalysts

Method for preparing phenolic foams using anhydrous aryl sulfonic acid catalysts

US Patent 4478958 · Granted Oct 23, 1984

Estimated economic value: $2,165,000 ⓘ

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Coated articles having abrasion resistant, glass-like coatings2019
Method of neuromusculoskeletal proprioceptive re-education and development of a 2016
Methods for producing photosensitive microparticles, non-aqueous dispersions the2013
Mechanical drop traction apparatus2012
Method of neuromusculoskeletal proprioceptive re-education and development of a 2012
Methods for producing photosensitive microparticles, aqueous compositions thereo2012
Tintable film-forming compositions having high refractive indices and coated opt2011
Hydrophilic compositions, methods for their production, and substrates coated wi2011
Abrasion resistant coating compositions and coated articles2010
Tinted, abrasion resistant coating compositions and coated articles2010
Composite transparencies2009
Method of neuromusculoskeletal proprioceptive re-education and development of a 2008