US Patent No: 6,546,927
Number of patents in Portfolio can not be more than 2000
Methods and apparatus for controlling piezoelectric vibration
Stats
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Apr 15, 2003
Issued date -
Mar 13, 2001
filing date -
09/805,498
serial no -
In Force
status
Importance
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Abstract
A method for aerosolizing a liquid comprises providing an aerosol generator having a plate with a plurality of apertures and a piezoelectric element to vibrate the plate. Liquid is supplied to the plate, and the piezoelectric element is energized to vibrate the plate at an initial frequency. The energy level is adjusted to vibrate the plate at its instantaneous resonant frequency during aerosolization of the liquid.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,973,493 Method of improving the biocompatibility of solid surfaces | 343 | 1987 | |
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| 4,593,291 Method for operating an ink jet device to obtain high resolution printing | 50 | 1984 | |
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| 5,170,782 Medicament nebulizer with improved aerosol chamber | 80 | 1991 | |
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| 5,515,842 Inhalation device | 110 | 1994 | |
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| 4,240,081 Ink jet printing | 56 | 1978 | |
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| 5,086,785 Angular displacement sensors | 117 | 1989 | |
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| 5,435,282 Nebulizer | 62 | 1994 | |
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| 4,479,609 Liquid sprayer | 64 | 1982 | |
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| 5,186,166 Powder nebulizer apparatus and method of nebulization | 75 | 1992 | |
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| 5,431,155 Single-dose nasal dispenser for atomized liquid drugs | 63 | 1993 | |
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| 4,976,259 Ultrasonic nebulizer | 89 | 1988 | |
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| 4,994,043 Two compartment syringe | 58 | 1988 | |
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| 4,550,325 Drop dispensing device | 73 | 1984 | |
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| 6,196,218 Piezo inhaler | 91 | 1999 | |
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| 4,591,883 Ink-jet printer head | 51 | 1985 | |
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| 5,063,396 Droplets jetting device | 60 | 1990 | |
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| 5,139,016 Process and device for aerosol generation for pulmonary ventilation scintigraphy | 63 | 1989 | |
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| 4,474,326 Ultrasonic atomizing device | 70 | 1982 | |
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| 6,060,128 Method of producing thin film and nanoparticle deposits using charges of alternating polarity | 36 | 1999 | |
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| 5,518,179 Fluid droplets production apparatus and method | 112 | 1994 | |
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| 4,799,622 Ultrasonic atomizing apparatus | 63 | 1987 | |
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| 6,328,033 Powder inhaler | 52 | 1999 | |
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| 4,828,886 Method of applying small drop-shaped quantities of melted solder from a nozzle to surfaces to be wetted and device for carrying out the method | 80 | 1987 | |
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| 5,744,515 Method and implantable article for promoting endothelialization | 171 | 1996 | |
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| 4,408,719 Sonic liquid atomizer | 52 | 1981 | |
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| 4,268,460 Nebulizer | 107 | 1980 | |
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| 5,452,711 Small form factor atomizer | 58 | 1993 | |
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| 5,910,698 Method and apparatus for controlling piezoelectric vibration | 29 | 1997 | |
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| 4,628,890 Fuel atomizer | 56 | 1984 | |
| 5,186,164 Mist inhaler | 112 | 1991 | |
| 5,297,734 Ultrasonic vibrating device | 74 | 1991 | |
| 5,415,161 Intermittant demand aerosol control device | 68 | 1993 | |
| 5,533,497 Sidestream aerosol generator and method in variable positions | 68 | 1995 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 15, 2014 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| 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 |