Membership
Tour
Register
Log in
Heaung Shig Oh
Follow
Person
Gyeonggi-do, KR
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Composite dry vacuum pump having roots and screw rotor
Patent number
7,611,340
Issue date
Nov 3, 2009
LOT Vacuum Co., Ltd.
Tae-Kyong Hwang
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
Information
Patent Application
INTEGRATED APPARATUS FOR VACUUM PRODUCING
Publication number
20100326599
Publication date
Dec 30, 2010
Tae-Kyong Hwang
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Composite dry vacuum pump having roots and screw rotor
Publication number
20080025858
Publication date
Jan 31, 2008
LOT Vacuum Co., Ltd.
Tae-Kyong Hwang
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...