Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Polymeric allophanates of diphenylmethane diisocyanate, prepolymers of these polymeric allophanates, and processes for the preparation of the polymeric allophanates and the prepolymers thereof

US Patent 6887399 · Granted May 3, 2005

Estimated economic value: $441,000

Assignee

Inventors

View full patent text on Google Patents →