Patents by Inventor Christopher A. Karwacki

Christopher A. Karwacki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Material and process for the filtration of nitric acid and NO2 from streams of air
    Publication number: 20050276738
    Abstract: A material for filtering NO2 and nitric acid vapors from air over a wide range of humidities and temperatures including a porous hydrophobic substrate and an amine is provided.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 15, 2005
    Inventors: William Feaver, Christopher Karwacki, Joseph Rossin
  • Process for the removal of ethylene oxide from air
    Patent number: 6837917
    Abstract: A process for removal of ethylene oxide (EO) from ambient air laden with EO is passed through a zeolite-based removal media, which preferrably consists of the acid form of zeolite ZSM-5, herein referred to as “H-ZSM-5.” The process described herein may be applied to many forms, configurations and uses, such as, for example, gas masks, fume hood ventilation filters, cartridge filters, etc. Preferably, the H-ZSM-5 is configured within an apparatus in such a manner that the stream containing EO is brought into sufficient contact with the zeolite to remove the EO from the airstream.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: January 4, 2005
    Assignee: Guild Associates, Inc.
    Inventors: Christopher A. Karwacki, Joseph A. Rossin