Changes

[[Category:Internal]]{{Project|Has project output=|Has sponsor=McNair Center|Has title=Patent Data Processing - SQL Steps|Has owner=Shelby Bice,|Has project status=Subsume|Has keywords=Tool}}Return to [[Internal Classification::Legacy| Patent Data (Wiki Page)]].

Column | Type | Modifiers -------------+-------------------+----------- patent | integer | asgtype | integer | assignee | character varying | city | character varying | state | character varying | country | character varying | nationality | character varying | residence | character varying | asgseq | integer |

- --------------+---------+-----------

patent_2015 | patentdata --------------+-------------- orgname | assignee city | city country | country patentnumber | patent state | state

Column | Type | Modifiers ---------------+-------------------+----------- lastname | character varying | firstname | character varying | address | character varying | postcode | character varying | orgname | character varying | city | character varying | country | character varying | patentnumber | integer | state | character varying | patentcountry | character varying | nationality2 | character varying | residence | character varying | asgseq | integer | asgtype | integer |

Code: ALTER TABLE patents ADD PRIMARY KEY (patentnumber); -- RESULT : ALTER TABLE allpatent=# CREATE UNIQUE INDEX patent_idx ON patents (patentnumber); Since the table is relatively large, and is likely to be searched often, an index has been imposed on the table. allpatent=# CREATE INDEX ON assignees (orgname); CREATE INDEX Patentdata: Column | Type | Modifiers- --------+-------------------+-----------

'''Patent_2015Schema:''' 

'''Combined Schema:'''

Column NamesThe final schema of the patents table is : patent int, kind varchar, claims int, apptype int, appnum int, gdate date, gyear int, appdate date, appyear int

patentnumber intAdditionally, three columns -- patent kind varchar, -- kind grantdate date, --gdate type varchar, applicationnumber varcharnber, filingdate dateuspc, prioritydate dateuspc_sub have been added from the historicalpatentdata,a table built from data downloaded from the USPTO Bulk Data Storage. The join was executed on the patent number. prioritycountry varchar, prioritypatentnumber varchar, ussubclass varchar, maingroup varchar, subgroup varchar, cpcsubclass varchar, cpcmaingroup varchar, cpcsubgroup varchar, classificationnationalcountry varchar, classificationnationalclass varchar, title varchar, numberofclaims int, primaryexaminerfirstname varchar, primaryexaminerlastname varchar, primaryexaminerdepartment varchar, pctpatentnumber varchar, filename varchar claims int, apptype int, appnum int, gyear int, appdate date, appyear int Output Schema Note : patents CREATE TABLE patents_merged( patentnumber intThe addition, kind varchar, grantdate date, type varchar, applicationnumber varchar, filingdate date, prioritydate datedeletion of columns as through separate [[Patent Data Cleanup - June 2016 |scripts]], prioritycountry varchar, prioritypatentnumber varchar, ussubclass varchar, maingroup varchar, subgroup varchar, cpcsubclass varchar, cpcmaingroup varchar, cpcsubgroup varchar, classificationnationalcountry varchar, classificationnationalclass varchar, title varchar, numberofclaims int, primaryexaminerfirstname varchar, primaryexaminerlastname varchar, primaryexaminerdepartment varchar, pctpatentnumber varchar, filename varchar, claims int, apptype int, appnum int, gyear int, appdate date, appyear int );therefore the scripts below will be slightly discrepant.

'''==== Index and Key Creation ====Patent numbers are distinct in this table, and are central to the rest of the fields in the table. A primary key can therefore be imposed on the column. Also, since a number of searches are likely to be conducted on this table, an index has been imposed as well. Code: ALTER TABLE patents ADD PRIMARY KEY (patentnumber); -- RESULT : ALTER TABLE allpatent=# CREATE UNIQUE INDEX patent_idx ON patents (patentnumber);   ====Sample Insert and Copy Statements''' ====

SELECT patent, kind, gdate, 'NULL', 'NULL', NULL, NULL, 'NULL', 'NULL', 'NULL', 'NULL', 'NULL', 'NULL', 'NULL', 'NULL', 'NULL', 'NULL', 'NULL', -1, 'NULL', 'NULL', 'NULL', 'NULL', 'NULL', claims, apptype, appnum, gyear, appdate, appyear FROM patents ); -- RESULT : INSERT 0 3984771

\COPY patents_merged TO '/tmp/merged_patents_export1.txt' DELIMITER AS E'\t' HEADER NULL AS '' CSV; --COPY 3984771

\COPY patents_merged TO '/tmp/merged_patents_export.txt' DELIMITER AS E'\t' HEADER NULL AS '' CSV; --COPY 1646225

\COPY patents FROM '/tmp/merged_patents_export1.txt' DELIMITER AS E'\t' HEADER NULL AS '' CSV; -- RESULT : COPY 3984771 \COPY patents FROM '/tmp/merged_patents_export.txt' DELIMITER AS E'\t' HEADER NULL AS '' CSV; -- RESULT : COPY 1646225 

select count(*) FROM (SELECT DISTINCT patentnumber FROM patents) AS t; --RESULT: 5411151 EXPECTED: 5426566

SELECT COUNT(*), * FROM patents GROUP BY patentnumber,

HAVING COUNT(*) > 1;

SELECT patentnumber, count(*) FROM patents GROUP BY patentnumber HAVING count(*)>1; --7640598

SELECT * FROM patents op WHERE op.patentnumber IN

ORDER BY op.patentnumber;

( SELECT * INTO patentsCleaned FROM patents op WHERE op.patentnumber IN

ORDER BY op.patentnumber ) --SELECT 5191306

INSERT INTO patentsCleaned( SELECT * FROM patents op WHERE op.patentnumber IN

AND op.applicationnumber NOT LIKE 'NULL' ORDER BY op.patentnumber );

--219845

====TESTING:==== allpatent=# select count(*) from patentsCleaned; count --------- 5411151 (1 row)

allpatent=# select count(*), patentnumber FROM patentsCleaned group by patentnumber having count(*) > 1; count | patentnumber -------+-------------- (0 rows)

********** INDEX CREATION ************** ALTER TABLE patents ADD PRIMARY KEY In the citations table, we needed to define another function that would convert a textual patent number into a number (patentnumber);-- RESULT : ALTER TABLEallpatent=# CREATE UNIQUE INDEX patent_idx ON big int, since the patents (patentnumber); allpatent=# CREATE INDEX ON assignees (orgnamenumber were exceeding the range of regular integers.);CREATE INDEX == Citations==

CREATE OR REPLACE FUNCTION cleanpatno (text) RETURNS bigint AS $$

'''patentdata schema:'''  Column | Type | Modifiers ------------+-------------------+----------- patent | integer | cit_date | date | cit_name | character varying | cit_kind | character varying | cit_country | character varying | citation | integer | category | character varying | citseq | integer |   SELECT patent as citingpatentnumber, citation AS citedpatentnumber INTO citations_merged FROM citations; --SELECT 38452957 '''patent_2015schema:''' Column | Type | Modifiers ---------------------+---------+----------- citingpatentnumber | integer | citingpatentcountry | text | citedpatentnumber | text | citedpatentcountry | text |

SELECT CAST(citingpatentnumber AS bigint), CAST(cleanpatno( citedpatentnumber) AS bigint) as citedpatentnumber INTO citations_merged FROM citations; -- RESULT : SELECT 59227881

CREATE TABLE citations patent_2015 | patentdata |( ---------------------+---------------+ citingpatentnumber | patent | citedpatentnumber | citation | ''' Combined Schema:'''  Column | Type | Modifiers--------------------+--------+----------- citingpatentnumber | bigint,| citedpatentnumber | bigint);|

\COPY citations_merged TO '/tmp/merged_citations_export1.txt' DELIMITER AS E'\t' HEADER NULL AS '' CSV; --COPY 38452957

\COPY citations_merged TO '/tmp/merged_citations_export.txt' DELIMITER AS E'\t' HEADER NULL AS '' CSV; -- RESULT : COPY 59227881

\COPY citations FROM '/tmp/merged_citations_export.txt' DELIMITER AS E'\t' HEADER NULL AS '' CSV; --RESULT : COPY 59227881

\COPY citations FROM '/tmp/merged_citations_export1.txt' DELIMITER AS E'\t' HEADER NULL AS '' CSV; --RESULT: COPY 38452957

ScriptsThe USPTO has a repository of patent data on their Bulk Data Storage system. We have this data downloaded and loaded into a table on the patent database. Here are the steps followed:* Download file from the BDS system - we have access to CSV files.* Create table with required specs* use the \COPY command to copy the data from the file into the table.  Script follows. '''Script:'''  /* creating patent data tables from : https://bulkdata.uspto.gov/data2/patent/maintenancefee/*/

CREATE TABLE \COPY PatentMaintenanceFee(FROM '/bulk/USPTO_Consolidated/MaintFeeEvents_20160613.txt' DELIMITER AS E'\t' HEADER NULL AS '' CSV;patentnumber varchar,applicationnumber int,smallentity varchar,filingdate date,grantissuedate date,maintenancefeedate date,maintenancefeecode varchar); -- RESULT : COPY 14042059

\COPY PatentMaintenanceFee FROM ' /bulk/USPTO_Consolidated* creating tables for historical patent data - USPTO */MaintFeeEvents_20160613.txt' DELIMITER AS E'\t' HEADER NULL AS '' CSV;-- RESULT : COPY 14042059

CREATE TABLE HistoricalPatentData(applicationid int \COPY historicalpatentdata FROM '/bulk/USPTO_Consolidated/HistoricalFiles/historical_masterfile.csv' DELIMITER AS ',pubno varchar,patentnumber varchar,NBER int,USPC varchar,USPC_sub varchar,applicationdate date,prioritydate date,pubdate date,displaydate date,disptype varchar,exp_dt date,exp_dt_max date,pta int)' HEADER NULL AS '' CSV;

\ --COPY historicalpatentdata FROM '/bulk/USPTO_Consolidated/HistoricalFiles/historical_masterfile.csv' DELIMITER AS ',' HEADER NULL AS '' CSV;11191813