Nova Patents
AT204835T

Transparent beads and their production method

Abstract

The invention claims a transparent wherein the solid microsphere. A separate an embodiment, the diameter of the aluminium oxide, zirconium oxide and silica, wherein the melting the solid microsphere total weight of the block, a total content at least about 70% of (weight), aluminium oxide and zirconium total content is greater than silicon content, wherein microsphere r.i at least about 1.6, which is used as the lens device.

Term

No projected expiry on record.

  1. Priority
  2. Filed
  3. Granted
  4. Today

20 members in 10 offices

This recordMember, by publication datePriority claim

Priority claims2

Priority claims
DocumentOfficeKindDate
10149997JapanA
9807618United States of AmericaW

Members20

Family members, oldest first
DocumentOfficeKind
CA2285271A1CanadaA1
WO9847830A1World Intellectual Property Organization (WIPO)A1
JPH10291836AJapanA
AU7122998AAustraliaA
EP0975555A1European Patent Office (EPO)A1
CN1252042AChinaA
KR20010006498ARepublic of KoreaA
EP0975555B1European Patent Office (EPO)B1
AT204835TThis recordAustriaT
ATE204835T1AustriaT1
DE69801497D1GermanyD1
US2001030811A1United States of AmericaA1
US6335083B1United States of AmericaB1
DE69801497T2GermanyT2
US6511739B2United States of AmericaB2
US6514892B1United States of AmericaB1
CN1121990CChinaC
KR100509892B1Republic of KoreaB1
CA2285271CCanadaC
JP3993269B2JapanB2