Assignee
NIPPON ENG SERVICE
JP·3 granted patents·55 citations·filing 1981–1987
Top patents by PatentIndex Score
3 records- 0173US4442702AMethod of and apparatus for inspecting liquid storage tanks for leaks by means of pressure decrease and increaseNIPPON ENG SERVICE·Filed 1981·Granted Apr 17, 1984·25 cites·2 claims
- 0264US4798496AUnderground tank with leak detection mechanismNIPPON ENG SERVICE·Filed 1987·Granted Jan 17, 1989·22 cites·4 claims
- 0335US4836710AUnderground tank with leak detection mechanismNIPPON ENG SERVICE·Filed 1987·Granted Jun 6, 1989·8 cites·6 claims
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