DULANEY RICHARD O

Overview

Total Patents

11

About

DULANEY RICHARD O has a total of 11 patent applications. Its first patent ever was published in 1922. It filed its patents most often in United States and Canada. Its main competitors in its focus markets engines, pumps and turbines, civil engineering and machines are HARBISON FISCHER INC, ROEDER GEORGE K and MASON RICHARD C.

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Patent filings in countries

World map showing DULANEY RICHARD Os patent filings in countries

#	Country	Total Patents
#1	United States	10
#2	Canada	1

Patent filings per year

Chart showing DULANEY RICHARD Os patent filings per year from 1900 to 2020

Similar Companies

HARBISON FISCHER INC 94% similarity

ROEDER GEORGE K 94% similarity

MASON RICHARD C 91% similarity

NEILSEN KARL P 91% similarity

GAMBIER PHILIPPE 90% similarity

LUFKIN IND INC 90% similarity

ELLSWORTH GRAY 90% similarity

FORD MICHAEL BRENT 90% similarity

MUTH PUMP LLC 90% similarity

DRESSER EQUIPMENT COMPANY 89% similarity

Focus industries

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

Focus technologies

#	Technology
#1	Pumps
#2	Earth drilling
#3	Unspecified technologies
#4	Positive-displacement engines
#5	Unspecified technologies
#6	Cyclically operating valves

Top inventors

#	Name	Total Patents
#1	Dulaney Richard O	11

Latest patents

Publication	Filing date	Title
US3175513A	1964-01-03	Hydraulic pumping unit
US3128675A	1961-12-01	Hydraulic well pump
US2998085A	1960-06-14	Rotary hammer drill bit
US2980027A	1959-08-21	Fluid pressure oil well pump
US2887989A	1958-07-03	Pneumatic rotary drill hammer
US2917025A	1958-06-03	Pneumatic drill hammer
US2786451A	1956-02-24	Pneumatic rotary drill hammer
US2813516A	1955-04-22	Pneumatic rotary drill hammer
US1967746A	1933-06-06	Pumping mechanism
US1478427A	1922-07-08	Pump
CA586603A	None	Pneumatic rotary drill hammer