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: EP0639886

Cited inSearch
Type:Patent literature
Publication No.:EP0213503  [A]
 (FUJITSU LTD [JP]) [A] 1,3,5 * page 10, line 2 - page 12, line 33; figures 6-8 *;
Type:Patent literature
Publication No.:EP0386282  [A]
 (SIEMENS AG [DE]) [A] 1,2 * page 2, line 17 - page 3, line 38 *;
Type:Patent literature
Publication No.:US5162668  [A]
 (CHEN CHIH-LIANG [US], et al) [A] 1 * column 4, line 21 - column 5, line 13; figure 2 *;
Type:Non-patent literature
Publication information:[A]  - DANA DAVIS, "CHARGE PUMP POWERS HIGH-SIDE SWITCH", ELECTRICAL DESIGN NEWS, NEWTON. MA, US, (19911107), vol. 7, no. 23, pages 276 - 278, XP000253721 [A] 1,3,4,6 * the whole document *