blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register Resource Book
European Patent Register – pocket guide
FAQ - European Patent Register
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP Citations: EP0018256

Cited inSearch
Type:Patent literature
Publication No.:CH461585  
 [ ] (CIBA GEIGY [CH]);
Type:Patent literature
Publication No.:DE2128889  
 [ ] (TEKADE FELTEN & GUILLEAUME);
Type:Patent literature
Publication No.:US3882458  
 [ ] (HOESCHELE JR DAVID F, et al)
Type:Non-patent literature
Publication information:   [ ] - ELECTRON, Volume 29, No. 4, Avril 1973 Rotterdam (NL) J. HOEK: "De trio zendontvanger, serie 515", pages 160 a 164. * Page 160, colonne de gauche, lignes 11 a 12; colonne de droite, lignes 11 a 12; page 161, colonne de gauche, lignes 29 a 30; colonne de droite, lignes 1 a 7; page 162, colonne de gauche, lignes 33 a 41 et colonne de droite, lignes 14 a 22 *