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:
Jul. 15, 2025
Filed:
Jun. 28, 2021
James R. Glidewell Dental Ceramics, Inc., Newport Beach, CA (US);
David C. Leeson, North Tustin, CA (US);
Marco A. Jokada, Diamond Bar, CA (US);
Vaheh Golestanian Nemagrdi, Orange, CA (US);
Hossein Madanipour, Mission Viejo, CA (US);
James R. Glidewell Dental Ceramics, Inc., Newport Beach, CA (US);
Abstract
A machinable preform for shaping into dental restorations is described that comprises material having suitable strength for use in dental applications without requiring further processing after shaping to strengthen the material (such as sintering). In one embodiment, a preform is comprised of a machinable dental material having a Vickers hardness value in the range of 4 HV GPa to 20 HV GPa, and comprises a body and a stem that extends from the outer surface of the body that supports the body during shaping. A method for making the machinable preform, and a kit comprising a machinable preform and a grinding tool, are also described.