Assignee
AKISHIMA LAB MITSUI ZOSEN INC
JP·2 granted patents·108 citations·filing 1992–1993
Technology mixE21B2
Top patents by PatentIndex Score
2 records- 0176US5495237AMeasuring tool for collecting down hole information and metering valve for producing mud-pulse used in the sameAKISHIMA LAB MITSUI ZOSEN INC·Filed 1993·Granted Feb 27, 1996·88 cites·8 claims
- 0241US5295548ABottom-hole information collecting equipmentAKISHIMA LAB MITSUI ZOSEN INC·Filed 1992·Granted Mar 22, 1994·20 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when AKISHIMA LAB MITSUI ZOSEN INC 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 →