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HOWETH DAVID FRANKLIN

Overview
  • Total Patents
    50
About

HOWETH DAVID FRANKLIN has a total of 50 patent applications. Its first patent ever was published in 1967. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets chemical engineering, civil engineering and machines are MN BETEILIGUNGS GMBH, PALMER ROBERT M and HENSLEY CLIFFORD J.

Patent filings per year

Chart showing HOWETH DAVID FRANKLINs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Howeth D Franklin 40
#2 Howeth David Franklin 9
#3 Howeth Franklin D 1

Latest patents

Publication Filing date Title
CA2133720A1 Rotary joint for pressurized fluids
US4961762A Structurally reinforced, self-aligning panel filter apparatus with associated clamping, face sealing and backflushing structure
CA1303092C Fluid coupling construction for non-pressure balanced fluid conduction swivel joints
US4802983A Hopper loading directly insertable horizontally mounted cylindrical segmented bore pleated filter system for rotary broom sweepers
US4823731A Multiple filter/cyclone air filtration apparatus with single, movable filter cleaning system
US4775398A Structurally improved filter housing and mounting apparatus
US4740221A Air filter apparatus with modularized self-cleaning filter system
WO8800312A1 Fluid coupling construction for non-pressure balanced fluid conducting swivel joints
US4708723A Rotary broom sweeper hopper
US4679604A Shear blade cutting device with adjusting blade alignment compensator
JPS6190718A Air filter apparatus
US4690700A Backflushed air filters with quick opening multiple discharge valve
US4661131A Backflushed air filters
US4650504A Hopper loading directly insertable horizontally mounted cylindrical segmented bore pleated filter system for rotary broom sweepers
US4690166A Pressure dependent dust control filter compressed air reversed flushing control system
US4756727A Horizontally mounted cylindrical segmented bore pleated filter system for rotary broom sweepers
JPS61259723A Air filter
US4637825A Filter system for power sweeper
US4681609A Top loading and inverted backflushed air filter systems
US4544389A Multiple jet backflushed air filter