Water well monitoring system

United States of America Patent

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Aug 16, 2005
Grant Date
Oct 16, 2003
app pub date
Apr 11, 2002
filing date
Apr 11, 2002

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Abstract

An apparatus and method for monitoring a liquid level in a 4-20 mA closed loop system are provided. A process instrument and a measuring unit are powered for a predetermined time and power is provided by a battery.

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Patent Owner(s)

Patent Owner	Address
ENDRESS + HAUSER WETZER GMBH + CO KG	OBERE WANK 1 NESSELWANG 87484

International Classification(s)

G01F:MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUI....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gardner, Jack	Fredericksburg, TX	1	4
Ridenour, Keith	Plainfield, IN	1	4

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Water well monitoring system

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United States of America Patent

10121764

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PATENT NO	6928868
APP PUB NO	20030192379A1
SERIAL NO	10121764
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
August 16, 2005	US,6928868,B2 US6928868B2	GRANTED PATENT AS SECOND PUBLICATION
October 16, 2003	US,20030192379,A1 US20030192379A1	FIRST PUBLISHED PATENT APPLICATION

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10121764

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