05900138 is referenced by 49 patents and cites 7 patents.

A vessel for filtering liquids includes a container and a receptacle for the liquid to be filtered, with a filtering device between the receptacle and the container. A lid is removably fitted to the container for the purpose of easy access to the container. A counting device is associated with the lid and is automatically activated by the removal of the lid for detecting and counting the occasions on which access is gained to the container by removing the lid.

Title
Vessel for filtering liquids, particularly drinking water having device for counting occasions of vessel access
Application Number
8/817943
Publication Number
5900138
Application Date
June 27, 1997
Publication Date
May 4, 1999
Inventor
Leonida Moretto
Vicenza
IT
Agent
Sughrue Mion Zinn Macpeack & Seas PLLC
Assignee
Laica S R L
IT
IPC
B67D 5/08
B01D 35/143
View Original Source