Hongwei Mao

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Tower drive pumping unit
- Patent number 10,094,368
- Issue date Oct 9, 2018
- International Business Alliance Management, Inc.
- Hongwei Mao
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Tower frame combined transmitting pumping unit without guiding wheels
- Patent number 9,234,411
- Issue date Jan 12, 2016
- International Business Alliance Management, Inc.
- Hongwei Mao
- E21 - EARTH DRILLING MINING
Information Patent Grant
Top-mounted digital-control tower pumping unit
- Patent number 8,863,826
- Issue date Oct 21, 2014
- International Business Alliance Management, Inc.
- Hongwei Mao
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
NUMERICALLY CONTROLLED TOWER TYPE COMBINATION DRIVE PUMPING UNIT AN...
- Publication number 20160160581
- Publication date Jun 9, 2016
- International Business Alliance Management, Inc.
- Hongwei Mao
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Numerically Controlled Tower Type Combination Drive Pumping Unit
- Publication number 20130112021
- Publication date May 9, 2013
- Hongwei Mao
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Tower frame combined transmitting pumping unit without guiding wheels
- Publication number 20130058803
- Publication date Mar 7, 2013
- Hongwei Mao
- E21 - EARTH DRILLING MINING
Information Patent Application
Top-mounted digital-control tower pumping unit
- Publication number 20110250081
- Publication date Oct 13, 2011
- Hongwei Mao
- E21 - EARTH DRILLING MINING