Dana J. Johnson

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Broomfield, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of cleaning beer kegs and other brewery processing equipment
- Patent number 8,211,239
- Issue date Jul 3, 2012
- Birko Corporation
- Dana J. Johnson
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Hide-curing additive
- Patent number 6,451,062
- Issue date Sep 17, 2002
- Birko Corporation
- Dana J. Johnson
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Grant
Waste water treatment with peracid compositions
- Patent number 5,647,997
- Issue date Jul 15, 1997
- Birko Corporation
- Frederick W. Holzhauer
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Grant
Waste water treatment with peracetic acid compositions
- Patent number 5,472,619
- Issue date Dec 5, 1995
- Birko Corporation
- Frederick W. Holzhauer
- C14 - SKINS HIDES PELTS LEATHER
Information Patent Grant
Hide raceway treatment and improved method of curing hides
- Patent number 5,435,808
- Issue date Jul 25, 1995
- Birko Corporation
- Frederick W. Holzhauer
- C14 - SKINS HIDES PELTS LEATHER

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF CLEANING BEER KEGS, BREWERY, WINERY AND DAIRY PROCESS EQU...
- Publication number 20130000681
- Publication date Jan 3, 2013
- Birko Corporation
- Dana J. Johnson
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
HIDE-CURING ADDITIVE
- Publication number 20010001479
- Publication date May 24, 2001
- Dana J. Johnson
- DANA J. JOHNSON
- C14 - SKINS HIDES PELTS LEATHER