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Citation Searching

Citations are a list of references appearing in a patent that refer to relevant prior art.

Both forward and backward citations can be searched in Quartet.

  • A forward citation search retrieves records that are citing the patent(s) of interest.
  • A backward citation search retrieves previously published records that are cited by the patent(s) of interest.

Citations can be searched on DOCDB family level by using the CIT command, and on domestic family level by using the PUBCIT command.

The above commands will search both forward and backward citations.

Modifiers can be included to search only forward or only backward citations. Additionally, modifiers can be included to search only citations from the specified category.

Available categories

Category Description
A Technological background
X - also  searches 102 Relevant on it's own

Y - also searches 103

Relevant in combination with others

 

Citation commands  

 

Command

Details

Examples
CIT



 Forward and backward citation search for DOCDB families on a search query or line number.

CIT(5)

forward & backward citation search of the results in line 5

CIT(PNUM=US10000000)

forward & backward citation search of US,10,000,000
CITF



 Forward citation search for DOCDB families on a search query or line number.

CITF(5)

forward citation search of the results in line 5

CITF(PA=(Netflix))

forward citations search of patents where Netflix is the assignee

CITF.X(PA=(Netflix))

same as above, however only citations categorized as X or 102
CITB Backward citations search for DOCDB families on a search query or line number.

CITB(4)

backward citation search of the results in line 4

CITB(IN=("Deng Han"))

backward citations of patents where John Smith is the inventor.
PUBCIT Forward and backward citation search for domestic families on a search query or line number.

CIT(5)

forward & backward citation search of the results in line 5

CIT(PNUM=US10000000)

forward & backward citation search of US,10,000,000
PUBCITF Forward citation search for domestic families on a search query or line number.

PUBCITF(5)

forward citation search of the results in line 5

PUBCITF(PA=(Netflix))

forward citations search of patents where Netflix is the assignee

PUBCITF.X(PA=(Netflix))

same as above, however only citations categorized as X or 102
PUBCITB Backward citation search for domestic families on a search query or line number.

PUBCITB(4)

backward citation search of the results in line 4

PUBCITB(IN=("Deng Han"))

backward citations of patents where John Smith is the inventor.