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:
Aug. 06, 2013
Filed:
Apr. 08, 2011
Ronald Marshall Bass, Houston, TX (US);
Robert Guy Harley, Spring, TX (US);
Justin Michael Noel, The Woodlands, TX (US);
Robert Anthony Shaffer, Cypress, TX (US);
Ronald Marshall Bass, Houston, TX (US);
Robert Guy Harley, Spring, TX (US);
Justin Michael Noel, The Woodlands, TX (US);
Robert Anthony Shaffer, Cypress, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
An insulated conductor heater may include an electrical conductor that produces heat when an electrical current is provided to the electrical conductor. An electrical insulator at least partially surrounds the electrical conductor. The electrical insulator comprises a resistivity that remains substantially constant, or increases, over time when the electrical conductor produces heat. An outer electrical conductor at least partially surrounds the electrical insulator.