BLACKBURN LUTHER A

Overview

Total Patents

12

About

BLACKBURN LUTHER A has a total of 12 patent applications. Its first patent ever was published in 1941. It filed its patents most often in United States. Its main competitors in its focus markets machines, mechanical elements and engines, pumps and turbines are LUITWIELER SAMUEL W, LANE MOTORS INC and CAMPODONICO JOHN J.

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Patent filings in countries

World map showing BLACKBURN LUTHER As patent filings in countries

#	Country	Total Patents
#1	United States	12

Patent filings per year

Chart showing BLACKBURN LUTHER As patent filings per year from 1900 to 2020

Similar Companies

LUITWIELER SAMUEL W 96% similarity

LANE MOTORS INC 93% similarity

CAMPODONICO JOHN J 92% similarity

SARGENT ENGINEERING CORP 92% similarity

SOLLER EUGEN 92% similarity

POWER MATIC CORP 92% similarity

BOGAR ISTVAN 91% similarity

KESLING ELMER G 91% similarity

FIBROC INSULATION COMPANY 91% similarity

GENESIS PARTNERS LP 91% similarity

Focus industries

#	Industry
#1	Machines
#2	Mechanical elements
#3	Engines, pumps and turbines
#4	Civil engineering

Focus technologies

#	Technology
#1	Unspecified technologies
#2	Pumps
#3	Gearing
#4	Belts or cables for driving
#5	Earth drilling
#6	Springs
#7	Shafts

Top inventors

#	Name	Total Patents
#1	Blackburn Luther A	12

Latest patents

Publication	Filing date	Title
US2902884A	1956-06-22	Multiple cylinder, elastic fluid counterbalanced pump jack
US3018865A	1956-06-22	Deep well pump jack counterbalance control means
US2756602A	1953-11-25	Lubricating foam balance deep oil well pumping unit
US2664764A	1951-09-15	Foam pressure balanced walking beam type oil well pumping jack
US2694933A	1949-11-05	Motion converting mechanism
US2546211A	1946-12-30	Lubricator
US2632532A	1946-09-16	Frame structure
US2544485A	1946-09-14	Chain structure
US2472461A	1946-09-13	Chain support
US2544484A	1945-07-02	Connector
US2522742A	1945-06-30	Crosshead
US2351183A	1941-11-25	Long stroke deep oil well pumping jack unit