Phase plug
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 21, 2012
Grant Date -
Nov 18, 2010
app pub date -
Apr 13, 2007
filing date -
Apr 13, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A phase plug comprises a body having an input side for receiving acoustic waves and an output side for transmitting acoustic waves, the body including a plurality of channels extending from the input side to the output side for propagating acoustic waves through the body. The input side comprises an input surface which includes a plurality of slots constituting entrances for the channels, each slot being arranged in a substantially radial orientation on the input surface about a central axis extending through the input surface. Substantially the entire input surface situated between the slots is concave and substantially part of a sphere or an ellipsoid in shape.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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GP ACOUSTICS (UK) LIMITED | MAIDSTONE KENT ME15 6QP |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Dodd, Mark | Woodbridge, GB | 12 | 58 |
# of filed Patents : 12 Total Citations : 58 |
Cited Art Landscape
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Patent Citation Ranking
- 2 Citation Count
- H04R Class
- 1.71 % this patent is cited more than
- 13 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Oct 06, 2023 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 8 |
Sep 06, 2019 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4 |
Sep 06, 2016 | I | Issuance | |
Aug 17, 2016 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 14, 2016 | P | Published | |
Jul 09, 2014 | F | Filing | |
Jul 09, 2014 | PD | Priority Date | |
Jun 23, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KLISKEY, ROGER;REEL/FRAME:033271/0210 Owner name: SUMMIT TOOL COMPANY, OHIO Effective Date: Jun 23, 2014 |

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