{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Selected poly(dianhydrides) compounds, selected poly(amic acid) compounds, and selected poly(imide) compounds", "item": "https://www.patentleaderboard.com/patent/5239049"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Selected poly(dianhydrides) compounds, selected poly(amic acid) compounds, and selected poly(imide) compounds

Selected poly(dianhydrides) compounds, selected poly(amic acid) compounds, and selected poly(imide) compounds

US Patent 5239049 · Granted Aug 24, 1993

Estimated economic value: $548,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Homeotropically aligned liquid crystal layer and process for the homeotropic ali2007
Homeotropically aligned liquid crystal layer and process for the homeotropic ali2004
Nonwoven fabrics having a durable three-dimensional image2004
Wetting agents for concrete cleaning and adhesives2003
Wetting agents for concrete cleaning and adhesives1997
Process for reducing trace levels of metallic impurities in cyclized polyisopren1997
Wetting agents for concrete compositions1996
Low-foaming, enhanced wetting dye-leveling agent1995
Enhanced wetting, low-foaming, dye-leveling agent comprising a piperazine substi1994
Process of making selected poly(dianhydrides) compounds1994
Process of making selected poly(dianhydrides) compounds1994
Selected poly(dianhydride) compounds terminated with reactive end groups1994