Advanced Search Field Tags
Use these two-character field tags to return more relevant results when building advanced search queries.
Field Tag |
Description |
---|---|
AN=Assignee Name | Searches for assignee names in the Assignee(s) field within a patent record. |
AC=Assignee Code | Searches the Code(s) field within a patent record. |
AE=Assignee Name + Code | Searches the Patent Assignee Name(s) and Code(s) field within a patent record. |
AU=Inventor | Searches for names in the Inventor Name(s) field within a patent record. |
CAC=Cited Assignee | Searches the Patent Assignee Name(s) and Code(s) field within a cited patent record. |
CPC=Cited Assignee Code | Searches the Code(s) field within a cited patent record. |
CD=Cited PAN | Searches the Derwent Primary Accession Number field within a cited patent record. |
CAU=Cited Inventor | Searches for names in the Inventor Name(s) field within a cited patent record. |
CN=Cited Assignee Name | Searches the Patent Assignee Name(s) field within a cited patent record. |
CP=Cited Patent Number | Searches the Patent Number(s) field within a cited patent record. |
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. |
DCN=Derwent Compound Number | Searches the Derwent Compound Number field within a patent record. |
DC=Class Code | Searches the Derwent Class field within a patent record. |
DCR=DCR Number | Searches the Derwent Chemistry Resource Number field within a patent record. |
DRN=Derwent Registry Number | Searches the Derwent Registry Number field within a patent record. |
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. |
IP=IPC | Searches the International Patent Classification (IPC) field within a patent record. |
MAN=Derwent Manual Code | Searches the Derwent Manual Code(s) field within a patent record. |
PN=Patent Number | Searches the Patent Number(s) field within a patent record. |
RIN=Ring Index Number | Searches the Ring Index field within a patent record. |
TI=Title | Searches the Title field within a patent record. |
TS=Topic | Searches for topic terms in the Title and Abstract fields within a patent record. |