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.

Date of Patent:
Nov. 03, 2015

Filed:

Jan. 16, 2014
Applicant:

Fram Group Ip, Llc, Lake Forest, IL (US);

Inventors:

Jing Zheng, Findlay, OH (US);

Jeffrey T. Boehler, Holland, OH (US);

Assignee:

Fram Group IP, LLC, Lake Forest, IL (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01T 21/02 (2006.01); H01T 13/41 (2006.01);
U.S. Cl.
CPC ...
H01T 21/02 (2013.01); H01T 13/41 (2013.01);
Abstract

A spark plug is provided having a resistor. The resistor is made from resistor glass material containing an alkali free barium alumino-silicate glass mixed with mullite. In one embodiment, the resistor is a 15 to 30 wt % alkali free barium alumino-silicate glass and 10 to 25 wt % mullite. The resistor material provides for a greater processing kiln temperature range with reduced resistor variability and improved durability performance.


Find Patent Forward Citations

Zheng, Jing. (2015). Spark plug (U.S. Patent No. 9178336). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9178336

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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