Assignee
PATENT DEV LTD
3 granted patents·16 citations·filing 1980–1980
Top patents by PatentIndex Score
3 records- 0145US4438699AMethod for remote positioning of explosive charges in mining voidsPATENT DEV LTD·Filed 1980·Granted Mar 27, 1984·9 cites·10 claims
- 0232US4205881AMachine and method for mining hard material in-situ between adjacent auger holesPATENT DEV LTD·Filed 1980·Granted Jun 3, 1980·4 cites·34 claims
- 0330US4568126AMethod and machine for removing blockage and silt from abandoned auger holesPATENT DEV LTD·Filed 1980·Granted Feb 4, 1986·3 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when PATENT DEV LTD files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →