Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WR Grace and Co Conn
Original Assignee
James Anthony Braatz
Aaron Herman Heifetz
W.R. Grace & Co.-Conn.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/665,498external-prioritypatent/US5169720A/en
Priority claimed from US07/682,502external-prioritypatent/US5403750A/en
Application filed by James Anthony Braatz, Aaron Herman Heifetz, W.R. Grace & Co.-Conn.filedCriticalJames Anthony Braatz
Publication of CA2061510A1publicationCriticalpatent/CA2061510A1/fr
Matériau pour l'immobilisation d'une substance biologiquement active et méthode pour l'immobilisation de cette substance en utilisant ce matériau
Agents pour favoriser la croissance de cellules et/ou stimulateurs de la production d'anticorps contenant des prépolymères ou polymères hydrophiles de polyurée-uréthane chimiquement modifiés