Search found 3 matches
- Thu Nov 16, 2017 7:05 pm
- Forum: Patent Information Matters
- Topic: CPC Revision
- Replies: 1
- Views: 7563
CPC Revision
Hi, Once a CPC code has been revised - how the change is handled by patent offices? For example in August 2017, CPC code C01B31/02 has been changed to C01B32/05. Now if I search by the old code (C01B31/02), will I get no result at all? If I search by new code (C01B32/05), will I get all patents clas...
- Thu Nov 16, 2017 6:55 pm
- Forum: Open Patent Services (OPS) and bulk data subscription products
- Topic: Level 3 and Level 6 in CPC ancestors
- Replies: 1
- Views: 2652
Level 3 and Level 6 in CPC ancestors
Hi, When using a query like - http://ops.epo.org/rest-services/classification/cpc/H04L2012/2841?navigation&ancestors to get the ancestors of a CPC code, the information in Level 3 and Level 6 seems to be incorrect. For example in the above query for code "H04L2012/2841" - Level 3 symbo...
- Thu Nov 16, 2017 6:55 pm
- Forum: Patent Information Matters
- Topic: Level 3 and Level 6 in CPC ancestors
- Replies: 1
- Views: 4501
Level 3 and Level 6 in CPC ancestors
Hi, When using a query like - http://ops.epo.org/rest-services/classification/cpc/H04L2012/2841?navigation&ancestors to get the ancestors of a CPC code, the information in Level 3 and Level 6 seems to be incorrect. For example in the above query for code "H04L2012/2841" - Level 3 symbo...