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HAENTJENS WALTER D

Overview
  • Total Patents
    27
About

HAENTJENS WALTER D has a total of 27 patent applications. Its first patent ever was published in 1960. It filed its patents most often in United States and Canada. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and machines are AIR CONTROLS INC, GOULDS PUMPS and GORMAN RUPP CO.

Patent filings in countries

World map showing HAENTJENS WALTER Ds patent filings in countries
# Country Total Patents
#1 United States 20
#2 Canada 7

Patent filings per year

Chart showing HAENTJENS WALTER Ds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Haentjens Walter D 27

Latest patents

Publication Filing date Title
US5141390A Vertical axis centilevered pump provided with a stabilizing by-pass flow
US5051071A Heat dissipating coupling for rotary shafts
US4747757A Submersible mixing pump
US4700808A Shaft mounted bearing lubricating device
US4854828A Remotely removable and replaceable motor for hazardous service pump installation
US4655684A Centrifugal pump for wide range of operating conditions
US4224008A Volute slurry pump and throttle bushing therefor
US4171852A Propulsion of slurry along a pipeline by ultrasonic sound waves
US4037980A Pump coupling
US3966262A Sump and pump construction for conveying solids in the form of a slurry
US3697190A Truncated conical drag pump
US3511185A Mechanical seal for slurry pump
US3528310A Pump transmission and motor
US3516759A Stuffing box lubrication system
US3468572A Shaft coupling
US3431032A Annular split bearing housing
US3335481A Method of manufacture of an annular split bearing housing
US3301614A Bearing adapter
US3163117A Variable speed cantilevered shaft pumps
US3066612A Sinking pump