Displacement measurements using a multi-cavity sensor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9933546
SERIAL NO

14863897

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An embodiment of an apparatus for estimating a parameter includes a light source configured to emit an optical signal, and an interferometer including a first reflector assembly having at least one reflective surface and a second reflector assembly having a plurality of individual reflective surfaces facing the at least one reflective surface. At least one of the first reflective assembly and the second reflector assembly is moveable in response to a stimulus, the plurality of individual reflective surfaces disposed at a fixed location relative to each other, each individual reflective surface defining a different optical cavity length relative to the first reflector assembly.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
BAKER HUGHES INCORPORATED2929 ALLEN PARKWAY HOUSTON TX 77019-2118

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Edwards, Carl M Katy, US 40 428
Turner, Ian Bedford, US 30 376

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 Oct 3, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 3, 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