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PROD RES & DEV

Overview
  • Total Patents
    33
About

PROD RES & DEV has a total of 33 patent applications. Its first patent ever was published in 1978. It filed its patents most often in United States, EPO (European Patent Office) and Australia. Its main competitors in its focus markets engines, pumps and turbines, machines and chemical engineering are SHURFLO PUMP MANUFACTURING CO, WILDEN PUMP AND ENGINEERING LL and KURT SCHOENE.

Patent filings in countries

World map showing PROD RES & DEVs patent filings in countries

Patent filings per year

Chart showing PROD RES & DEVs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hartley E Dale 17
#2 Hartley F Scott 11
#3 Solomon Donald F 8
#4 Hartley Ezra Dale 4
#5 Leishman Layne S 2
#6 Hartley Frederick Scott 1
#7 Hartley Fredrick Scott 1
#8 Leishman Scott 1
#9 Dale Hartley E 1

Latest patents

Publication Filing date Title
US5380428A Pump for reverse osmosis system
US5244361A Pump for reverse osmosis system
US5193988A Reverse osmosis system and automatic cycling booster pump therefor
CA1315598C Booster pump, particularly for reverse osmosis systems
US5154820A Reverse osmosis system with cycled pressure intensifiers
US5125809A Wobble plate pump
US5028166A Highway guidepost
US5020605A Post driver and methodology
US5000845A Reverse osmosis system and automatic cycling booster pump therefor
US4995793A Reverse osmosis system and automatic cycling booster pump therefor
US4827831A Reciprocating device and switching mechanism therefor
US4797069A Pump with variable angle wobble plate
US4684332A Ratio pump and method
US4610605A Triple discharge pump
US4610192A Reciprocable device
US4827832A Valve system for a reciprocating device
US4493435A Liquid dispensing system and automatic selector therefor
US4396357A Diaphragm pump with ball bearing drive
US4214137A Pressure switch with snap element