Help on Field Searching

  This page contains tips on the use of fields in your searches. If, after reading this page, you have any unanswered questions, please let us know.

  Patents are divided into many fields, such as inventor name. By narrowing your search so that a document is only counted as a 'Hit' if the term you are searching for occurs in the field you have specified, you can greatly decrease the likelihood of having extraneous patents returned.

  This page shows a list of all the available fields information, and tips on their use. (A list is also available at the bottom of the Advanced Search Page).

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Title (TI)
Abstract (AB)
Application Number (AP)
Publication Number (PN)
Applicant Name (PA)
Applicant Address (ADDR)
Applicant Country/Province Code (PAC)
Pharmaceutical Classification(PHC)
Inventor Name(INR)
Priority (PRN)
Main International Classification (IC1)
Secondary International Classification (IC2)
Extraction Process (EXT)
Preparing Process (PHY)
Formulation  Process (GAL)
TCM Formula composition(MIX)
New Therapeutic Use (NUS)
Therapeutic Effect (THEF)
Side Effect(TOXI)

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Title(TI)

This field contains the title of the patent. In the field search, you need to add field code as suffix after search words or phrases.

Example: hypertension/TI

               Radix ginseng/TI

               (Hypertension OR ginseng) /TI

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Abstract (AB)

This field contains a brief summary of the patented invention.

TIP: The abstract contains many of the relevant words of a patent.

Example: hypertension/AB

               Radix ginseng/AB

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Application Number (AP)

This field contains the identification number assigned by the SIPO to applications which have received a filing date.

Example: 93100972/AN

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Publication Number (PN)

This field contains the unique number assigned to applications that have been issued as patents which contains 7 digits.

Example: 1075650/PN

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Applicant Name (PA)

This field contains the applicant's name.

Example: wu chuanfu/AP

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Applicant Address (ADDR)

This field contains applicant's post code and address.

Example: 239001/ADDR

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Applicant Country/Province Code (PAC)

This field contains applicant's country/province/city code. Complete list for the codes refers to Applicant Country/Province Code List

Example: us/PAC

               CN21/PAC

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Inventor Name (INR)

This field contains inventor's name.

Example: wang/AP

               wu chuanfu/AP

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Priority (PRN)

This field contains data indicating in which country an application has claimed priority.

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Main International Classification (IC1)

This field contains the Main International classification to which the patent has been assigned.

TIP: To search for International Classification A61K 35/78, you must enter the classification with a zero ("0") in place of the space -- i.e., without any embedded space -- as follows:
A61K035/78/ IC1. Formatting your search in this field in any other way will result in an error.

Example: A61K035/78/ IC1

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Secondary International Classification (IC2)

This field contains the Secondary International classification(s) to which the patent has been assigned.

TIP: To search for International Classification C12G 3/04, you must enter the classification with a zero ("0") in place of the space -- i.e., without any embedded space -- as follows:
IC2/C12G003-04. Formatting your search in this field in any other way will result in an error.

Example: C12G003/04 /IC2

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Pharmaceutical Classification(PHC)

PHC is special pharmaceutical classification. For detailed information about PHC, please refer to PHC classification table.

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Extraction Process (EXT)

This is an indexed field describing extraction process concerned in patent. It includes descriptors for therapeutic material extracted, source material, and the extraction process.

Example: Herba Houttuyniae extract/EXT

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Preparing Process (PHY)

Indexed field for describing Chinese medicine preparation method.

Example: lyophilization/PHY

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Formulation Process (GAL)

Indexed field for describing Chinese medicine Formulation Process.

Example: capsule/GAL

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TCM Formula composition(MIX)

Indexed field for describing TCM Formula Composition.

Example: radix ginseng/MIX

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New Therapeutic Use (NUS)

Indexed field for describing known medicine with new therapeutic use. Using medicine's name to build search query.

Example: Spica Prunellae extract/NUS

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Therapeutic Effect (THEF)

Indexed field for describing Therapeutic Effect, including disease name.

Example: hypertension/THEF

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Side Effect (TOXI)

Indexed field for describing patent product's side effect, or side effect which the patent product can treat.
Example: nausea/TOXI

Example: radiotherapy side effect/TOXI