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{{Project|Has project output=Data,Tool,How-to|Has image= |Has title= USPTO Assignees Bulk Data Processing|Has owner=|Has start date=|Has deadline=|Has keywords=Data |Has sponsor=McNair Center|Has notes=|Has project status=Subsume|Is dependent on=|Does subsume=}}
We would like Return to download and absorb data from this location on the USPTO website into our tables. The objective is to determine whether this dataset is better than the current version of our patent data (a combination of the data in the patent_2015 and patentdata databases[[Patent Data]].
<section begin=bulk />The USPTO provides bulk data recording patent transactions, applications, properties, reassignments, and history through XML files to the general public. These files have been downloaded and the data has been compiled in tables using PostgreSQL. The objective of processing the bulk data is to enhance the McNair Center's historical datasets ([[Patent Data Processing - SQL Steps|patent_2015 and patentdata]]) and track the entirety of US patent activity, specifically concerning utility patents. <section end=bulk /> == Steps Followed to Extract the USPTO Assignees Data ==
===Extracting Data from XML Files ===
Corresponding tables are:
*assignment-records : assignment*patent-assignors : assignors*patent-assignees : assignees*patent-properties : properties Additionally, for each file that is downloaded, there are some associated specs. All of these are stored in the PatentAssignment table. Here is the data model diagram. ==== Assignment Records ====
Additionally, for each file that is downloaded, there are some associated specs. All of these are stored The fields in the PatentAssignment table.assignment record are:* last_update_date* purge_indicator* recorded_date* correspondent_name* correspondent_address_1* correspondent_address_2* correspondent_address_3* correspondent_address_4* conveyance_text
Here is the corresponding XML that we are mapping:
<name>DOUGLAS B. MCKNIGHT</name>
<address-1>595 MINER ROAD</address-1>
<address-3>CLEVELAND, OH 44143</address-3>
==== Assignors ====
Here are the columns in the assignors table:
* reel_no
* frame_no
* assignor_name
* execution_date
The corresponding XML node is :
<name>WALKER, MATTHEW J.</name>
<name>OLSZEWSKI, MARK E.</name>
==== Assignees ====
Here are the columns in the assignees table:
* reel_no
* frame_no
* assignee_name
* assignee_address_1
* assignee_address_2
* assignee_city
* assignee_state
* assignee_country
* assignee_postcode
The corresponding XML nodes are:
<address-1>GROENEWOUDSEWEG 1</address-1>
<postcode>5621 BA</postcode>
==== Patent Properties ====
Here are the columns in the properties table:
* reel_no
* frame_no
* documentid
* country
* kind
* filingdate
* invention_title
The corresponding XML segment would be:
<invention-title lang="en">LEAN AZIMUTHAL FLAME COMBUSTOR</invention-title>
Patent properties have a many-to-one relationship : one patent can have more than one properties.
Note: We are not sure what documents with kind 'X0' say
==== Patent Assignment ====
Every XML file download has some fields associated with it, in addition to a number of patent assignment nodes.
Here are the columns in the table:
* reel_no
* frame_no
* action_key_code
* USPTO_Transaction_Date
* USPTO_Date_Produced
* version
Here is what the XML in a downloaded file looks like:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE us-patent-assignments>
-<us-patent-assignments date-produced="20131101" dtd-version="1.0">
Here is the DTD specified by the USPTO, which specifies optional fields and : <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE us-patent-assignments [<!ELEMENT us-patent-assignments (action-key-code, transaction-date, patent-assignments)> <!ATTLIST us-patent-assignments dtd-version CDATA #IMPLIED date-produced CDATA #IMPLIED> <!ELEMENT action-key-code (#PCDATA)> <!ELEMENT transaction-date (date)> <!ELEMENT patent-assignments (data-available-code | patent-assignment+)> <!ELEMENT date (#PCDATA)> <!ELEMENT data-available-code (#PCDATA)> <!ELEMENT patent-assignment (assignment-record, patent-assignors, patent-assignees, patent-properties)> <!ELEMENT assignment-record (reel-no, frame-no, last-update-date, purge-indicator, recorded-date, page-count?, correspondent, conveyance-text)> <!ELEMENT patent-assignors (patent-assignor+)> <!ELEMENT patent-assignees (patent-assignee+)> <!ELEMENT patent-properties (patent-property+)> <!ELEMENT reel-no (#PCDATA)> <!ELEMENT frame-no (#PCDATA)> <!ELEMENT last-update-date (date)> <!ELEMENT purge-indicator (#PCDATA)> <!ELEMENT recorded-date (date)> <!ELEMENT page-count (#PCDATA)> <!ELEMENT correspondent (name, address-1?, address-2?, address-3?, address-4?)> <!ELEMENT conveyance-text (#PCDATA)> <!ELEMENT patent-assignor (name, execution-date?, date-acknowledged?)> <!ELEMENT patent-assignee (name, address-1?, address-2?, city?, state?, country-name?, postcode?)> <!ELEMENT patent-property (document-id*, invention-title?)> <!ELEMENT name (#PCDATA)> <!ATTLIST name name-type (natural | legal) #IMPLIED> <!ELEMENT address-1 (#PCDATA)> <!ELEMENT address-2 (#PCDATA)> <!ELEMENT address-3 (#PCDATA)> <!ELEMENT address-4 (#PCDATA)> <!ELEMENT execution-date (date)> <!ELEMENT date-acknowledged (date)> <!ELEMENT city (#PCDATA)> <!ELEMENT state (#PCDATA)> <!ELEMENT country-name (#PCDATA)> <!ELEMENT postcode (#PCDATA)> <!ELEMENT document-id (country, doc-number, kind?, name?, date?)> <!ELEMENT invention-title (#PCDATA | b | i | u | sup | sub)*> <!ATTLIST invention-title id ID #IMPLIED lang CDATA #REQUIRED> <!ELEMENT country (#PCDATA)> <!ELEMENT doc-number (#PCDATA)> <!ELEMENT kind (#PCDATA)> <!--bold formatting for text--> <!ELEMENT b (#PCDATA | i | u | smallcaps)*> <!--italic formatting for text--> <!ELEMENT i (#PCDATA | b | u | smallcaps)*> <!--underscore: style - single is default--> <!ELEMENT u (#PCDATA | b | i | smallcaps)*> <!ATTLIST u style (single | double | dash | dots ) 'single' > <!--superscripted text--> <!ELEMENT sup (#PCDATA | b | u | i)*> <!--subscripted text--> <!ELEMENT sub (#PCDATA | b | u | i)*> <!--small capitals--> <!ELEMENT smallcaps (#PCDATA | b | u | i)*> ]> 
===Inserting Extracted Data into Tables ===
===Clean Up ===
== Scripts for processing data ==
The programs/scripts (see details below) are located on our [[Software Repository|Bonobo Git Server]].
repository: Patent_Data_Parser
branch: next
directory: /uspto_assignees_xml_parser
=== Downloading raw bulk data from USPTO ===
repository: Patent_Data_Parser
branch: next
directory: /uspto_assignees_xml_parser
The down-loader script used to download XML files is essentially same, with minor changes, as the one used for downloading USPTO patent-data.
That is, the current version of down-loader script downloads all files from the base URL:
=== Parsing the XML files ===
repository: Patent_Data_Parser
branch: next
directory: /uspto_assignees_xml_parser
file: uspto_assignees_XML_parser.plx
==== NAME ====
uspto_assignees_XML_parser.plx - Parses XML files and populates a database.
Specifically, parses every file in a directory according to a schema (see above).
Then populates a database on the RDP.
==== SYNOPSIS ====
perl uspto_assignees_XML_parser.plx /path/to/directory_containing_XML_files
==== USAGE & FEATURES ====
The full path to directory is provided as a command line argument. It should contain the XML files to parse and no other file.
This path should be specified in Windows format (with '\') and NOT unix format.
'''Features and Effects'''
As each XML file is parsed, a database on local host (RDP) is populated. If at any point there is an error, for example a particular
XML file is bad/invalid or the psql statement cannot be executed, the program aborts with a message.
We choose to populate local database because remote connections are too slow. The database is eventually moved to DataBase server manually.
==== TESTS ====
The first version does the job as expected. It was used to populate the assignees database by parsing XML files from USPTO(see above).
We parsed all XML files dated till 7/4/2016.
==== TO DO ====
*Add more command line options to improve usability.
*Improve portability to allow Unix/Linux pathnames. This is straightforward to do with Perl modules File::Basename and File::Spec.

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