Patent US4857683A successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0445604A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Separation materials for chromatography

Assignee: Merck Patent GmbH
•
Filing: 1991-02-22
•
Granted: —
•
Expires: 2011-02-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from German Die Erfindung betrifft ein Trennmaterial für die Chromatographie, bei dem Cyclodextrin über eine Carbamidsäuregruppe an einen Träger gebunden ist. The invention relates to a separation material for chromatography, in which cyclodextrin is bonded to a support via a carbamic acid group.

Inventors

  • 👤 Karin Dr. Cabrera
  • 👤 Gisela Schwinn
  • 👤 Dieter Lubda

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 07:39
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/281; B01J20/286; B01J20/02; B01J20/10; B01J20/103; B01J20/28; B01J20/28002; B01J20/28004; B01J20/28054; B01J20/28057; B01J20/28061; B01J20/28078; B01J20/29; B01J20/30; B01J20/3092; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3214; B01J20/3217; B01J20/3219; B01J20/3231; B01J20/3242; B01J20/3244; B01J20/3246; B01J20/3257; B01J20/3259; B01J20/3263; C; C07; C07B; C07B57/00; B01J2220/00; B01J2220/50; B01J2220/54; B01J2220/58

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag