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Advanced Search Field Tags

Field tags enable you to search data fields within a record.

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AN=Assignee Name

Searches for assignee names in the Assignee(s) field within a patent record.

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AC=Assignee Code

Searches the Code(s) field within a patent record.

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AE=Assignee Name + Code

Searches the Patent Assignee Name(s) and Code(s) field within a patent record.

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AU=Inventor

Searches for names in the Inventor Name(s) field within a patent record.

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CAC=Cited Assignee

Searches the Patent Assignee Name(s) and Code(s) field within a cited patent record.

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CPC=Cited Assignee Code

Searches the Code(s) field within a cited patent record.

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CD=Cited PAN

Searches the Derwent Primary Accession Number field within a cited patent record.

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CAU=Cited Inventor

Searches for names in the Inventor Name(s) field within a cited patent record.

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CN=Cited Assignee Name

Searches the Patent Assignee Name(s) field within a cited patent record.

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CP=Cited Patent Number

Searches the Patent Number(s) field within a cited patent record.

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CX=CP + Family

Searches the Patent Number(s) field within a cited patent family.

A patent family is a set of individual patents granted by various countries. Think of a patent family as all the equivalent patent applications corresponding to a single invention, covering different geographical regions.

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DCN=Derwent Compound Number

Searches the Derwent Compound Number field within a patent record.

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DC=Class Code

Searches the Derwent Class field within a patent record.

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DCR=DCR Number

Searches the Derwent Chemistry Resource Number field within a patent record.

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DRN=Derwent Registry Number

Searches the Derwent Registry Number field within a patent record.

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PAN=Derwent Prim. Access. No.

Searches the Derwent Primary Accession Number field within a patent record. For example, GA=1999-527918 finds this patent record.

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IP=IPC

Searches the International Patent Classification (IPC) field within a patent record.

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MAN=Derwent Manual Code

Searches the Derwent Manual Code(s) field within a patent record.

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PN=Patent Number

Searches the Patent Number(s) field within a patent record.

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RIN=Ring Index Number

Searches the Ring Index field within a patent record.

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TI=Title

Searches the Title field within a patent record.

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TS=Topic

Searches for topic terms in the Title and Abstract fields within a patent record.

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Field Tags

• AN=Assignee Name
• AC=Assignee Code
• AE=Assignee Name + Code
• AU=Inventor
• CAC=Cited Assignee
• CPC=Cited Assignee Code
• CD=Cited PAN
• CAU=Cited Inventor
• CN=Cited Assignee Name
• CP=Cited Patent Number
• CX=CP + Family
• DC=Class Code
• DCN=Derwent Compound Number
• DCR=DCR Number
• DRN=Derwent Registry Number
• IP=Int Patent Classification
• MAN=Derwent Manual Code
• PAN=Derwent Prim. Access. No.
• PN=Patent Number
• RIN=Ring Index Number
• TI=Title
• TS=Topic

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See also Advanced Search Examples