Patent assignee · US · COMPANY

Telecalc, Inc.

1Patents
0Active
1Granted
24Portfolio score

Filing activity: Oct 11, 1983 → Oct 11, 1983

Most-cited patents

PatentTitleAreaCited byStatus
US4518825A Telephone interconnect detection system Electricity 22 Expired

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