Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Presence information providing system, and method and server thereof

Presence information providing system, and method and server thereof

US Patent 7953821 · Granted May 31, 2011

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Control device, control method, and non-transitory computer readable medium for 2025
Magnetic recording medium, fluorine-containing ether compound and lubricant for 2023
Fluorine-containing ether compound, lubricant for magnetic recording medium, and2023
Lubricant for magnetic recording medium, and method for producing magnetic recor2022
Fluorine-containing ether compound, lubricant for magnetic recording medium and 2022
Fluorine-containing ether compound, lubricant for magnetic recording medium and 2022
Fluorine-containing ether compound, lubricant for magnetic recording medium, and2022
Display device2021
Gel composition2021
Fluorine-containing ether compound, lubricant for magnetic recording medium, and2021
Method for operating a service system2020
Method for operating a thermal system and a thermal system2019