Kwabena Osei

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South Portland, ME, US

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Patents Grantslast 30 patents

Information Patent Grant
Drainage system and apparatus for treating runoff
- Patent number 10,227,781
- Issue date Mar 12, 2019
- Hydro International PLC
- Robert Yaw Gyamfi Andoh
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Drainage system and apparatus for treating runoff
- Patent number 9,739,064
- Issue date Aug 22, 2017
- Hydro International Ltd
- Robert Yaw Gyamfi Andoh
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Method for configuring a vortex flow control device
- Patent number 9,625,914
- Issue date Apr 18, 2017
- Hydro International PLC
- Daniel Stuart Jarman
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Flow regulating device
- Patent number 9,051,724
- Issue date Jun 9, 2015
- Hydro International PLC
- Robert Yaw Gyamfi Andoh
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Drainage System and Apparatus for Treating Runoff
- Publication number 20170130460
- Publication date May 11, 2017
- Hydro International plc
- Robert Yaw Gyamfi Andoh
- E04 - BUILDING
Information Patent Application
Drainage System and Apparatus for Treating Runoff
- Publication number 20150299990
- Publication date Oct 22, 2015
- Hydro International plc
- Robert Yaw Gyamfi Andoh
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
Method of Configuring a Vortex Flow Control Device and a Vortex Fl...
- Publication number 20150268667
- Publication date Sep 24, 2015
- Hydro International plc
- Daniel Stuart Jarman
- G05 - CONTROLLING REGULATING
Information Patent Application
Flow Regulating Device
- Publication number 20120261012
- Publication date Oct 18, 2012
- Hydro International plc
- Robert Yaw Gyamfi Andoh
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL