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HUMPHREY PROD CO

Overview
  • Total Patents
    31
  • GoodIP Patent Rank
    211,437
About

HUMPHREY PROD CO has a total of 31 patent applications. Its first patent ever was published in 1978. It filed its patents most often in United States, Japan and Canada. Its main competitors in its focus markets mechanical elements, machines and packaging and shipping are BETTIS CORP, KOLTEK OY and WABCO STEUERUNGSTECH.

Patent filings in countries

World map showing HUMPHREY PROD COs patent filings in countries
# Country Total Patents
#1 United States 22
#2 Japan 7
#3 Canada 1
#4 EPO (European Patent Office) 1

Patent filings per year

Chart showing HUMPHREY PROD COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Toliusis Vytautas J 6
#2 Loveless Stanley M 5
#3 Tinholt Thomas 4
#4 Knepple Robert 3
#5 Klien David T 3
#6 Tinholt Thomas H 3
#7 Klien Scott 3
#8 Baitoutasu Jiei Toriushisu 2
#9 Toomasu Chinhoruto 2
#10 Jabcon Leonard J 2

Latest patents

Publication Filing date Title
US10228072B1 Valve stem and assembly
US9494245B1 Over-molded valve stem and method of making a valve stem for a valve assembly
US8794266B1 Cam actuated valve assembly with manual and electric activation
US2007228309A1 Actuator and valve assembly
CA2500559A1 Modular device assembly incorporating electronics therein
US7280889B2 Networkable zone control modules and method and coveyor system incorporating the same
US6488050B1 Pneumatic valve assembly
US6405757B1 Low power solenoid valve assembly
US6302266B1 Conveyor control system employing zone control module
US5211198A Poppet construction for valve
JPH0369866A Quad seal ring for slide member
US4915134A Three-way poppet valve with hollow stem
US4971115A Four-way poppet valve with hollow stem and four-port body
JPS6474364A Single stem four-way valve
US4842020A Double-solenoid single-stem four-way valve
US4823842A Single-stem four-way valve
US4494572A Four-way poppet valve assembly
US4524807A Snap-together modular manifold construction
US4501299A Plunger-type valve
US4428276A O-Ring seal for piston of double-acting fluid pressure cylinder