Assembly comprising an electrostatic sound generator and a transformer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 16, 2020
Grant Date -
Aug 3, 2017
app pub date -
Jan 30, 2017
filing date -
Jan 28, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An assembly of a transformer and an electrostatic sound generator is especially efficient if the resonance frequency of the diaphragm is in the frequency range in which the generator is operated, such as in the interval of 1-20 kHz. Then, a smaller transformer with a winding ratio of 5000 or less may be used for feeding the sound generator, making the assembly suitable for hearing aid purposes or in-ear products such as for pro audio use.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SONION NEDERLAND B V | 2132 LS HOOFDDORP |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Blom, Frederik Cornelis | Hoofddorp, NL | 6 | 12 |
# of filed Patents : 6 Total Citations : 12 | |||
de, Ruijter Laurens | Hoofddorp, NL | 17 | 75 |
# of filed Patents : 17 Total Citations : 75 | |||
Groffen, Camiel Eugène | Hoofddorp, NL | 4 | 6 |
# of filed Patents : 4 Total Citations : 6 | |||
van, Gilst Koen | Hoofddorp, NL | 9 | 30 |
# of filed Patents : 9 Total Citations : 30 | |||
van, Oosten Haico | Hoofddorp, NL | 1 | 2 |
# of filed Patents : 1 Total Citations : 2 | |||
Voss, Rasmus | Hoofddorp, NL | 16 | 62 |
# of filed Patents : 16 Total Citations : 62 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 16, 2027 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 16, 2031 |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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