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CHATLEFF CONTROLS INC

Overview
  • Total Patents
    21
About

CHATLEFF CONTROLS INC has a total of 21 patent applications. Its first patent ever was published in 1957. It filed its patents most often in United States, Germany and United Kingdom. Its main competitors in its focus markets mechanical elements, machines and engines, pumps and turbines are SELF RICHARD E, ROBERTS BRASS MFG CO and TOMASKO JOHN.

Patent filings in countries

World map showing CHATLEFF CONTROLS INCs patent filings in countries
# Country Total Patents
#1 United States 14
#2 Germany 2
#3 United Kingdom 2
#4 Sweden 2
#5 Australia 1

Patent filings per year

Chart showing CHATLEFF CONTROLS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Shurtleff O O 10
#2 Chatham George N 5
#3 Wiser Herman David 2
#4 Chatham George Norton 2
#5 Charles Shurtleff Louis 2
#6 Wiser Herman D 2
#7 Shurtleff L 1
#8 Shurtleff Louis Charles 1
#9 Schurtleff O 1
#10 Parrish James R 1

Latest patents

Publication Filing date Title
US6805384B1 Sealing mechanism
US6442966B1 Fixed orifice expansion device
US5131695A Coupling with teflon seat
AU6070686A Check valve
US4674673A Fluid distributor, and a method of affixing extensions to the fluid distributor
US4643222A Check valve
US3514134A Conduit fitting with seal
US3382894A Refrigeration valve and method and apparatus for making it
US3301469A Valves with electrically operated closure means
DE1675965A1 Three-way valve for pressure medium lines
US3201148A Coupling means for connecting conduits
GB966836A Fluid pressure operated valves
US3026906A Diverting valve with seats of different sizes
US3096790A Fluid pressure operated valves
US3030981A Diverting valve with independent pistons
US3057377A Fluid pressure operated valves
US3099290A Diverting valve
DE1145449B Control valve arrangement for a pressure medium with an inlet and two consumer connections