Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Pearl polymer containing hollow pearls

Pearl polymer containing hollow pearls

US Patent 4208309 · Granted Jun 17, 1980

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Enzyme preparation containing protease2002
Leucine aminopeptidases produced recombinantly from Aspergillus soyae2001
Synthesis of beta-lactam antibiotics with immobilized penicillin amidase2001
Vegetable oil enzymatic degumming process by means of aspergillus phospholipase1999
High surface area support having bound latex particles containing oxirane groups1999
Method for making carrier systems for biologically active materials1994
Crosslinked, activatable, hydrophilic carrier beads1994
Enzymatic treatment of edible oils1993
Method for making a sedimentation resistant stable enzyme dispersion1992
Method for immobilizing dissolved proteins1989
Method for immobilizing dissolved proteins1989
Polymer particles and latices thereof for the immobilization of biologically act1989