Search found 3 matches

by shahzeb_akhtar
Thu Nov 16, 2017 7:05 pm
Forum: Patent Information Matters
Topic: CPC Revision
Replies: 1
Views: 6148

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...
by shahzeb_akhtar
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: 2642

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...
by shahzeb_akhtar
Thu Nov 16, 2017 6:55 pm
Forum: Patent Information Matters
Topic: Level 3 and Level 6 in CPC ancestors
Replies: 1
Views: 4488

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...