Methods and computer-program products for searching patent-related documents using search term variants

Patent metadata

Field	Value
Publication number	US-10891700-B2
Application number	US-201414323470-A
Country	US
Kind code	B2
Filing date	Jul 3, 2014
Priority date	Dec 18, 2012
Publication date	Jan 12, 2021
Grant date	Jan 12, 2021

Abstract

In one embodiment, a method of searching for patent-related documents stored in a document corpus include receiving, by a computing device, a search query comprising a first term and a second term, wherein the search query indicates that the first term is an equivalent of the second term, searching the document corpus for patent-related documents wherein the first term is used interchangeably with the second term, and preparing for display a list of one or more patent-related documents. In yet another embodiment, a method of searching a parts thesaurus, includes receiving, by a computing device, a search query including a search term, and searching the parts thesaurus for term variants of the search term. The method further includes preparing for display term variants of the search term found in the parts thesaurus.

First claim

What is claimed is:

1. A computer-implemented method of searching for patent-related documents stored in a document corpus, the computer-implemented method comprising:
receiving, by a computing device, a search query comprising a first term and a second term, wherein the search query indicates that the first term is an equivalent of the second term by an equal sign positioned between the first term and the second term;
in response to receiving the search query:
searching the document corpus for one or more patent-related documents containing the first term and the second term in a text of each of one or more patent-related documents;
identifying, using optical character recognition, a part number placed next to the first term in a text of each of one or more patent-related documents, the part number not being included in the search query;
determining whether the same part number is placed next to the second term in the text of each of the one or more patent-related documents;
adding the one or more patent related-documents to a list in response to determining that the part number is placed next to the first term and the same part number is placed next to the second term in the text of each of the one or more patent-related documents; and
displaying the list of the one or more patent-related documents.

2. A computer program product comprising:
a computer-readable medium storing executable instructions that, when executed by a computing device, causes the computing device to:
receive a search query comprising a first term and a second term, wherein the search query indicates that the first term is an equivalent of the second term by an equal sign positioned between the first term and the second term;
in response to the search query:
search a document corpus for one or more patent-related documents containing the first term and the second term in a text of each of one or more patent-related documents;
identify, using optical character recognition, a part number placed next to the first term in a text of each of one or more patent-related documents, the part number not being included in the search query;
determine whether the same part number is placed next to the second term in the text of each of the one or more patent-related documents;
add the one or more patent related-documents to a list in response to determining that the part number is placed next to the first term and the same part number is placed next to the second term in the text of each of the one or more patent-related documents; and
display a list of the one or more patent-related documents.

3. The computer-implemented method of claim 1 , wherein one or more of the one or more patent-related documents use the first term interchangeably with the second term by at least positively reciting that the first term is an equivalent to the second term in one or more of the one or more patent-related documents.

4. The computer-implemented method of claim 1 , wherein searching the document corpus for one or more patent-related documents containing the first term and the second term comprises searching a parts thesaurus.

5. The computer-implemented method of claim 1 , further comprising:
identifying, using optical character recognition, the part number placed next to the first term in a drawing of each of one or more patent-related documents, the part number not being included in the search query; and
determining whether the same part number is placed next to the second term in the drawing of each of the one or more patent-related documents.

6. The computer-implemented method of claim 1 , further comprising:
identifying, using optical character recognition, a predetermined phrase in a text of each of one or more patent-related documents, the predetermined phrase indicating relational information between the first term and the second term;
determining whether the predetermined phrase is located proximate to the first term and the second term in the text of each of one or more patent-related documents; and
adding the one or more patent related-documents to the list in response to determining that the predetermined phrase is located proximate to the first term and the second term in the text of each of one or more patent-related documents.

7. The computer program product of claim 2 , wherein searching the document corpus for one or more patent-related documents containing the first term and the second term comprises searching a parts thesaurus.

8. The computer program product of claim 2 , wherein the computer-readable medium storing executable instructions, when executed by a computing device, causes the computing device to:
identify, using optical character recognition, the part number placed next to the first term in a drawing of each of one or more patent-related documents, the part number not being included in the search query; and
determine whether the same part number is placed next to the second term in the drawing of each of the one or more patent-related documents.

9. The computer program product of claim 2 , wherein the computer-readable medium storing executable instructions, when executed by a computing device, causes the computing device to:
identify, using optical character recognition, a predetermined phrase in a text of each of one or more patent-related documents, the predetermined phrase indicating relational information between the first term and the second term;
determine whether the predetermined phrase is located proximate to the first term and the second term in the text of each of one or more patent-related documents; and
add the one or more patent related-documents to the list in response to determining that the predetermined phrase is located proximate to the first term and the second term in the text of each of one or more patent-related documents.

10. The computer-implemented method of claim 4 , wherein the parts thesaurus comprises a plurality of part names, and bibliographic information regarding each part name of the plurality of part names.

11. The computer program product of claim 7 , wherein the parts thesaurus comprises a plurality of part names, and bibliographic information regarding each part name of the plurality of part names.

12. The computer-implemented method of claim 10 , wherein the bibliographic information for one or more part names of the plurality of part names includes a reference to a patent-related document that uses the first term interchangeably with the second term.

Assignees

• Lexisnexis Division Of Reed Elsevier Inc
• Relx Inc

Inventors

• Elias Brian K
• Morrise Matthew C
• Daley Ray

Classifications

• G06F16/313

  Selection or weighting of terms for indexing · CPC title

• G06F16/3338

  Query expansion · CPC title

• G06F16/58

  Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually · CPC title

• G06Q50/184 Primary

  Intellectual property management · CPC title

• G06F16/00

  Information retrieval; Database structures therefor; File system structures therefor · CPC title