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:
Jun. 28, 2022
Filed:
Sep. 13, 2019
Nicoventures Trading Limited, London, GB;
Lars Sundvall, Örnsköldsvik, SE;
Richard Svensson, Vårgårda, SE;
Bas Castelijn, Groningen, NL;
David Neil McClanahan, Winston-Salem, NC (US);
Nicoventures Trading Limited, London, GB;
Abstract
A method of preparing a whitened tobacco material for use in a smokeless tobacco product is provided, including: (i) extracting a tobacco material with an extraction solution to provide a tobacco solids material and a tobacco extract; (ii) cooking the tobacco solids material in an alkaline sulfite cooking liquor including sulfite ions and having a pH of greater than 7 to form a tobacco pulp; (iii) bleaching the tobacco pulp with a bleaching solution to provide a bleached tobacco material; and (iv) drying the bleached tobacco material to provide the whitened tobacco material.