Optical sensor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9766178
APP PUB NO 20150177132A1
SERIAL NO

14408939

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An optical sensor is described for distinguishing between liquids of different refractive index, through strength of interference caused by an optical cavity having an exposed optical boundary in contact with such liquids. The sensor may be used, for example, to distinguish between water and aviation fuel in an aircraft fuel tank.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
OXSENSIS LIMITEDSTFC RUTHERFORD APPLETON LABORATORY CHILTON DIDCOT OXFORSHIRE OX11 0QX

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pechstedt, Ralf-Dieter Didcot, GB 11 164

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Mar 19, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 19, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00