Patent assignee · TW · COMPANY

Well Communication Co.

1Patents
0Active
1Granted
18Portfolio score

Filing activity: Apr 7, 1999 → Apr 7, 1999

Most-cited patents

PatentTitleAreaCited byStatus
US6173040A Telephone line state detecting device Electricity 2 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.