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. 16, 2025
Filed:
Oct. 27, 2022
Applicant:
Sandvik Mining and Construction Australia (Production/supply) Pty Ltd, Queensland, AU;
Inventors:
Mietek Rataj, New South Wales, AU;
Bradley Darlington, New South Wales, AU;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D 21/00 (2006.01);
U.S. Cl.
CPC ...
E21D 21/0033 (2013.01); E21D 21/008 (2013.01);
Abstract
A rock bolt includes a central rod, a tubular outer body provided around the central rod, and an expansion mechanism arranged for radially expanding the leading portion of the outer body. The rock bolt is arranged such that the outer body at installation is pulled into a bore of a formation from the leading portion of the outer body using a driving force applied via the central rod.
Rataj, Mietek. (2025). Rock bolt (U.S. Patent No. 12497891). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12497891
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile