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

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DWPI Classification • A broad classification system assigned by Thomson Reuters uniquely <strong>to</strong> DWPI • 2 Level Hierarchy • Top level split in<strong>to</strong> 21 Sections (A-X) • Searchable at two levels: => S Q/DC ( Section Level ) => S Q18/DC ( Subsection Level ) • Expand /DC <strong>to</strong> see definition online • DCs are searchable in DWPI back <strong>to</strong> 1970 30
DWPI Manual Codes • An in-depth classification system assigned by Thomson Reuters uniquely <strong>to</strong> DWPI • Covers basic patent publications in chemical/life science and engineering subject areas • Chemical/life science codes (A-N) are only searchable in WPIDS/WPIX back <strong>to</strong> 1963 • Electrical/electronic codes (S-X) are searchable by all users of DWPI back <strong>to</strong> 1980 • More recently added Mechanical codes (Q), are searchable by all users of DWPI back <strong>to</strong> 2005 31
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: Classification searching • DWPI C
Page 33 and 34: International Patent Classification
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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