The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2007
Filed:
Jun. 14, 2004
Daniel Joseph Tempel, Macungie, PA (US);
Philip Bruce Henderson, Allentown, PA (US);
Jeffrey Richard Brzozowski, Kunkletown, PA (US);
Ronald Martin Pearlstein, Macungie, PA (US);
Thomas Richard Gaffney, Carlsbad, CA (US);
Daniel Joseph Tempel, Macungie, PA (US);
Philip Bruce Henderson, Allentown, PA (US);
Jeffrey Richard Brzozowski, Kunkletown, PA (US);
Ronald Martin Pearlstein, Macungie, PA (US);
Thomas Richard Gaffney, Carlsbad, CA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
This invention relates to an improvement in a low-pressure storage and delivery system for gases having Lewis basicity, particularly hazardous specialty gases such as phosphine and arsine, which are utilized in the electronics industry. The improvement resides in storing the gases in a liquid incorporating a reactive compound having Lewis acidity capable of effecting a reversible reaction between a gas having Lewis basicity. The reactive compound comprises a reactive species that is dissolved, suspended, dispersed, or otherwise mixed with a nonvolatile liquid.