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Dallas, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
System, method and apparatus for entraining air in concrete
Patent number
10,689,302
Issue date
Jun 23, 2020
Mach IV, LLC
Charles D. Welker
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
System, method and apparatus for entraining air in concrete
Patent number
10,532,954
Issue date
Jan 14, 2020
Mach IV, LLC
Charles D. Welker
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
System, method and apparatus for entraining air in concrete
Patent number
9,593,050
Issue date
Mar 14, 2017
Mach IV, LLC
Charles D. Welker
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
System, method and apparatus for manufacturing stable cement slurr...
Patent number
9,481,607
Issue date
Nov 1, 2016
Mach IV, LLC
Charles D. Welker
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
SYSTEM, METHOD AND APPARATUS FOR ENTRAINING AIR IN CONCRETE
Publication number
20200283345
Publication date
Sep 10, 2020
MACH IV, LLC
Charles D. Welker
G05 - CONTROLLING REGULATING
Information
Patent Application
SYSTEM AND METHOD FOR DISPOSING CARBON DIOXIDE
Publication number
20170341988
Publication date
Nov 30, 2017
MACH IV, LLC
Charles David Welker
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
SYSTEM, METHOD AND APPARATUS FOR ENTRAINING AIR IN CONCRETE
Publication number
20170157796
Publication date
Jun 8, 2017
MACH IV, LLC
Charles D. Welker
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
SYSTEM, METHOD AND APPARATUS FOR ENTRAINING AIR IN CONCRETE
Publication number
20170158567
Publication date
Jun 8, 2017
MACH IV, LLC
Charles D. Welker
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
FIRE CORE COMPOSITIONS AND METHODS
Publication number
20150240163
Publication date
Aug 27, 2015
MACH IV, LLC
Charles D. Welker
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
FIRE CORE COMPOSITIONS AND METHODS
Publication number
20150175887
Publication date
Jun 25, 2015
MACH IV, LLC
Charles D. WELKER
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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