David Gordon Arthur Crichton

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Rodney, NZ

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Patents Grantslast 30 patents

Information Patent Grant
Sealing arrangement
- Patent number 11,268,619
- Issue date Mar 8, 2022
- APEX VALVES LIMITED
- David Gordon Arthur Crichton
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Liquid control valve
- Patent number 9,605,764
- Issue date Mar 28, 2017
- APEX VALVES LIMITED
- David Gordon Arthur Crichton
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Excess pressure safety relief valve
- Patent number 9,353,883
- Issue date May 31, 2016
- APEX VALVES LIMITED
- David Gordon Arthur Crichton
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
SEALING ARRANGEMENT
- Publication number 20200284354
- Publication date Sep 10, 2020
- APEX VALVES LIMITED
- David Gordon Arthur CRICHTON
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Liquid Control Valve
- Publication number 20150184763
- Publication date Jul 2, 2015
- APEX VALVES LIMITED
- David Gordon Arthur Crichton
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Excess Pressure Safety Relief Valve
- Publication number 20140174566
- Publication date Jun 26, 2014
- APEX VALVES LIMITED
- David Gordon Arthur Crichton
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC