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:
Mar. 24, 2026
Filed:
Sep. 27, 2021
3m Innovative Properties Company, St. Paul, MN (US);
Craig M. Parkulo, Midland, NC (US);
Wesley M. Barbee, Oxboro, NC (US);
Matthew Shannon, Salisbury, NC (US);
Ronnie G. Durham, Monroe, NC (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A safety system includes a plurality of alert devices associated with a unique identifier. Each alert device includes a user interface, a wireless transceiver, and a processor communicably coupled to the wireless transceiver. The processor of at least one alert device is configured to generate an alarm signal indicative of an alarm state, and transmit the alarm signal including the unique identifier of the at least one alert device to the wireless transceivers of the other alert devices. The processor of each of the other alert devices is configured to receive the alarm signal from the at least one alert device, determine a link quality indicative of at least a relative distance between the at least one alert device and the corresponding other alert device, and display, via the user interface, an alert message including the unique identifier of the at least one alert device and the corresponding link quality.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile