Dwpi manual codes list

@MISC{Farmdoc_derwentworld, author = {B Farmdoc}, title = {DERWENT WORLD PATENTS INDEX ® (DWPI TM) CPI MANUAL CODES}, year = {}} Share. OpenURL. Abstract. ISBN: (Edition18) Keyphrases. dwpi tm derwent world patent index cpi manual code Powered by: About CiteSeerX. EPI Manual Codes Part 2 U Semiconductor Materials and Processes U11 covers processing, packaging, assembly, testing and handling of the devices in U12 to U14, but note that aspects of manufacture specific to certain devices can be found in U12 and U14, under codes for LEDs, lasers, solar cells, thick film and hybrid circuits. PATENT ASSIGNEE CODE (PACO) • Each assignee in DWPI also has a Patent Assignee Code. We have four separate series of PACO • Standard codes, these end –C. e.g. SIEI-C • Non-standard codes, these end -N e.g. ACME-N • Individual’s name, these end -I e.g. SMIT-I • Russian companies, these end -R e.g. UNVO-R.

PATENT ASSIGNEE CODE (PACO) • Each assignee in DWPI also has a Patent Assignee Code. We have four separate series of PACO • Standard codes, these end –C. e.g. SIEI-C • Non-standard codes, these end -N e.g. ACME-N • Individual’s name, these end -I e.g. SMIT-I • Russian companies, these end -R e.g. UNVO-R. The DWPI Manual Code system is divided into technology Sections by letter in the same way as DWPI Classification. There are around 26, DWPI Manual codes in total, divided broadly as follows: Sections A-N Chemical Patents Index (CPI), 8, codes. Sections PQ General Mechanical Patents Index, (GMPI), 3, codes. CPI Manual Codes 1 CPI Manual Codes Introduction Derwent Manual Codes have been developed over a period of more than 50 years, having been first introduced in when they were applied to patent references of the Farmdoc Service. Subsequently, this service has been renamed Section B and incorporated into the Chemical Patents Index (CPI).

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