Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Benzopyran compound and its pharmaceutical use

Benzopyran compound and its pharmaceutical use

US Patent 5021432 · Granted Jun 4, 1991

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Separator for solid polymer electrolyte fuel cell and process for producing the 2004
Fluorescent particles, method for preparing the same and paper preventing forger2003
Cosmetic composition containing alkenylsuccinic acid ester of saccharide1996
Pattern detecting apparatus1996
Coin discriminator using a plurality of optical fiber groups1994
Benzopyran compound and its pharmaceutical use1994
Benzopyran compound and its pharmaceutical use1994
Benzopyran compound and its pharmaceutical use1994
Benzopyran compound and its pharmaceutical use1994
Process for making an optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran com1993
Diastereomeric ester compound useful as an intermediate in the making of an opti1993
Processes for preparing optically active 3,4-dihydro-3,4-epoxy-2H-1-benzopyran c1992