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:
Nov. 11, 2025
Filed:
Mar. 01, 2021
3m Innovative Properties Company, St. Paul, MN (US);
Vijay K. Gidla, Värnamo, SE;
Magnus K. Petersson, Halmstad, SE;
Henrik J. Sjöman, Skillingaryd, SE;
David L. Albean, Indianapolis, IN (US);
Paul D. Henry, Carmel, IN (US);
James L. Fiocca, Carmel, IN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A short-range communication system is presented that includes a system control unit and a personal protective equipment device. The system control unit includes a network creator configured to create a short-range network on a wireless frequency, an interference detector configured to detect a device on an interfering frequency, and a control unit frequency hopper configured to, based on the detected device, scan a frequency range for an open frequency and switch the system control network to the open frequency. The personal protective equipment device includes a network joiner configured to join the short-range network and a device frequency hopper configured to switch the personal protective equipment device to the open frequency.