Introduction to Derwent World Patents Index on ... - STN International

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=> S (ANTILOCK? OR ANTI-LOCK?)(2W)BRAK? OR ABS L1 27515 (ANTILOCK? OR ANTI-LOCK?)(2W)BRAK? OR ABS => S L1 AND (X22 OR Q18)/DC,MC Q18 BRAKE SYSTEMS; STEERING SYSTEMS; CONTROL X22 AUTOMOTIVE ELECTRICS . . . L2 Example: why use classification in DWPI? 7380 L1 AND (Q18 OR X22)/DC,MC => S L1 NOT L2 L3 20135 L10 NOT L11 => D KWIC 1- Classification can help limit a text search <strong>to</strong> an appropriate area of technology. In this example, the term 'ABS' is ambiguous; a problem that can be solved by using classifications. Many false answers (L3) are avoided by using classification. L3 ANSWER xx OF 20135 WPINDEX COPYRIGHT 2010 THOMSON REUTERS on STN TECH . . . The case structure of light emitting module is made of acrylonitrile-butadiene-styrene (ABS) material. L3 ANSWER xx OF 20135 WPINDEX COPYRIGHT 2010 THOMSON REUTERS on STN TECH . . . protein is selected from ovalbumin, single chain antibodies (Abs) and <strong>to</strong>xins. The carrier protein is an immunoglobulin . . . L3 ANSWER xx OF 20135 WPINDEX COPYRIGHT 2010 THOMSON REUTERS on STN NOV . . . follows the air bearing surface (ABS) of a return yoke (400). 32
International Patent Classification • In-depth classification assigned by patent offices around the world • 5 level hierarchy covering all technologies • Top level split in<strong>to</strong> 8 sections (A-H) • DWPI Format – ANNA-NNNN/NNN /IPC • STN format – ANNANNNN-NNN /IPC • IPCs are searchable in DWPI back <strong>to</strong> 1963 Note: an online IPC thesaurus is available in all STN patent files. 33
Page 1 and 2: Introduction <stro
Page 3 and 4: What is Derwent <s
Page 5 and 6: What is first-level patent data?
Page 7 and 8: Example: The value of enhanced titl
Page 9 and 10: How to access DWPI
Page 11 and 12: DWPI subject coverage • 1963 •
Page 13 and 14: DWPI records have two levels AN 199
Page 15 and 16: DWPI member level data • Original
Page 17 and 18: AN 2001-476126 [51] WPINDEX TI Iron
Page 19 and 20: Member(0006) TIEN Iron comprising a
Page 21 and 22: DWPI text search tips • Add plura
Page 23 and 24: SET SPELLINGS auto
Page 25 and 26: The FOCUS command re-sorts the answ
Page 27 and 28: A search can be extended to
Page 29 and 30: Classification searching • DWPI C
Page 31: DWPI Manual Codes • An in-depth c
Page 35 and 36: Agenda • What is the Derw
Page 37 and 38: Example: Patent Assignees (/PA) =>
Page 39 and 40: Example: Patent Assignees (/PA) (co
Page 41 and 42: Example: PACO (cont.) => E E2+DEF E
Page 43 and 44: Patent Assignee Codes • Standard
Page 45 and 46: Example: Inventor
Page 47 and 48: Agenda • What is the Derw
Page 49 and 50: Publication numbers (PN) • STN ha
Page 51 and 52: Date fields and examples Publicatio
Page 53 and 54: Review: What is DWPI “value-add
Page 55 and 56: Resources • DWPI on STN User Docu

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