Nova Patents
PL330191A1

Soluble oxides for biological applications

Abstract

The present invention is concerned with the use of a silica-xerogel, prepared via a sol-gel process, dissolving totally during a desired period when in contact with body fluids, and incorporated with a biologically active agent, for the manufacture of a delivery device for controlled release delivery of the biologically active agent.

Term

Term ended

Projected expiry passed 29 May 2017, 9.3 years ago.

  1. Priority
  2. Filed
  3. Published
  4. Projected expiry
  5. Today

44 members in 19 offices

This recordMember, by publication datePriority claim9 more offices are in the list below

Priority claims12

Priority claims
DocumentOfficeKindDate
1857596United States of AmericaP
1857596United States of AmericaP
4242397United States of AmericaP
4242397United States of AmericaP
9700330FinlandW
9700330FinlandW
60018575–––
60042423–––
FI9700330–––
US19960018575P–––
US19970042423P–––
WO1997FI00330–––

Members44

Family members, oldest first
DocumentOfficeKind
CA2257172A1CanadaA1
WO9745367A1World Intellectual Property Organization (WIPO)A1
AU2964197AAustraliaA
NO985534D0NorwayD0
NO985534LNorwayL
EP0906243A1European Patent Office (EPO)A1
PL330191A1This recordPolandA1
CN1219919AChinaA
CZ384598A3CzechiaA3
EE9800418AEstoniaA
SK164298A3SlovakiaA3
HU9903865A2HungaryA2
HUP9903865A1HungaryA1
HU9903865A3HungaryA3
HUP9903865A3HungaryA3
NZ332968ANew ZealandA
JP2001509122AJapanA
AU738176B2AustraliaB2
EE03758B1EstoniaB1
US2003021820A1United States of AmericaA1
CN1103320CChinaC
RU2208582C2Russian FederationC2
US6764690B2United States of AmericaB2
SK284193B6SlovakiaB6
US2004197414A1United States of AmericaA1
CA2257172CCanadaC
EP0906243B1European Patent Office (EPO)B1
AT301102TAustriaT
ATE301102T1AustriaT1
DE69733889D1GermanyD1
DK0906243T3DenmarkT3
ES2244998T3SpainT3
EP1618896A2European Patent Office (EPO)A2
DE69733889T2GermanyT2
CZ297042B6CzechiaB6
US7326422B2United States of AmericaB2
EP0906243B2European Patent Office (EPO)B2
DK0906243T4DenmarkT4
ES2244998T5SpainT5
JP4322315B2JapanB2
DE69733889T3GermanyT3
NO328711B1NorwayB1
EP1618896A3European Patent Office (EPO)A3
HU227939B1HungaryB1