Charles Harkins

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Hampstead, NH, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for retrofitting a refrigeration system from HCFC...
- Patent number 10,330,364
- Issue date Jun 25, 2019
- Hudson Technologies, Inc.
- Charles Harkins
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
System and method for retrofitting a refrigeration system from HCFC...
- Patent number 10,094,603
- Issue date Oct 9, 2018
- Hudson Technologies, Inc.
- Charles Harkins
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
System and method for retrofitting a refrigeration systems from HCF...
- Patent number 9,435,575
- Issue date Sep 6, 2016
- Hudson Technologies, Inc.
- Charles Harkins
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Apparatus and method for flushing a refrigeration system
- Patent number 6,164,080
- Issue date Dec 26, 2000
- Hudson Technologies, Inc.
- Arthur R. Mika
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR RETROFITTING A REFRIGERATION SYSTEM FROM HCFC...
- Publication number 20190178544
- Publication date Jun 13, 2019
- Hudson Technologies, Inc.
- Charles Harkins
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SYSTEM AND METHOD FOR RETROFITTING A REFRIGERATION SYSTEM FROM HCFC...
- Publication number 20170131009
- Publication date May 11, 2017
- Hudson Technologies, Inc.
- Charles Harkins
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SYSTEM AND METHOD FOR RETROFITTING A REFRIGERATION SYSTEM FROM HCFC...
- Publication number 20160025395
- Publication date Jan 28, 2016
- Hudson Technologies, Inc.
- Charles Harkins
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SYSTEM AND METHOD FOR RETROFITTING A REFRIGERATION SYSTEM FROM HCFC...
- Publication number 20150377533
- Publication date Dec 31, 2015
- Charles Harkins
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...