U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.

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Examiner: Lynch, Michael


Primary examiner statistics: 83 patents; average approval time: 718 days
Assistant examiner statistics: 250 patents; average approval time: 608 days

Patents as Primary Examiner (view all)

Patent No. Patent Title:
4488110 Voltage monitor with visible level indicator
4481466 Pulse amplifying system
4479090 Circuitry for measuring magnetic head flying characteristics
4442405 Float assembly for a sensor
4433296 Electrostatic system analyzer
4406990 Direct coupled DC amplification circuit
4266201 Method and apparatus using first and second parallel channels, on...
4054898 Switching system to short-circuit a load with minimum residual vo...
4051504 Ion implanted zener diode
4048627 Electroluminescent semiconductor device having a restricted curre...
4047124 Planar solid state laser array
4047219 Radiation sensitive thyristor structure with isolated detector
4044316 Stabilized cavity-dumped nd:yag laser
4042944 Monostable multivibrator
4042950 Platinum silicide fuse links for integrated circuit devices
4042947 High voltage transistor with high gain
4041359 Method of making an electrolytic capacitor and electrolytic capac...
4040075 Frequency converter
4040081 Alternating current control circuits
4037142 Electrolytic capacitor package having a grommet with tapered lead...
4037241 Shaped emitters with buried-junction structure
4035825 Thyristor with branched base
4035827 Thermally ballasted semiconductor device
4035828 Semiconductor integrated circuit device
4028564 Compensated monolithic integrated current source
4028717 Field effect transistor having improved threshold stability
4028718 Semiconductor Hall element
4028721 Semiconductor controlled rectifier device
4028715 Use of floating diffusion for low-noise electrical inputs in CCD'...
4027321 Reliable MOSFET device and method for making same
4025827 Electrolytic capacitor having a highly strained elastomeric seali...
4025828 Rectifier and rectifying method
4021837 Symmetrical semiconductor switch having carrier lifetime degradin...
4021835 Semiconductor device and a method for fabricating the same
4016464 Anode riser means for a capacitor
4016591 Semiconductor controlled rectifier
4016465 Cathode electrode for an electrolytic capacitor and method of mak...
4015282 Solid state amplifier device and circuit therefor
4015280 Multi-layer semiconductor photovoltaic device
4014037 Semiconductor device

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
5201656 Method and apparatus for repairing dental implants
5180372 Splittable catheter and method
5169387 Method and apparatus for catheterization of a body cavity
5163909 Medical fluid delivery system
5160327 Rotational pressure drive for a medical syringe
5160265 Beauty kit for aid in hairstyle selection
5158455 Control unit for a scaler and a polisher
5158040 Animal feeder
5152749 Instrument placement apparatus
5152306 Hairdressing comb and hairdressing kit including each comb
5152279 Retractor and associated method for use in laparoscopic surgery
5151087 Aortic root cannula
5149325 Vacuum system for auto transfusion device
5149327 Medical valve, catheter with valve, and catheter assembly
5147319 Winged needle
5147309 Apparatus for priming a hypodermic needle with hazardous fluid
5147314 Apparatus for introducing at least one of a catheter and a guide ...
5147313 Medical fluid delivery system with uniquely configured pump unit ...
5147306 Device for puckering the flesh to facilitate injections
5140862 Injection pump calibration device
5139481 Treatment for type II diabetes
5139484 Ambulatory syringe-pusher device for parenteral injections with o...
5139485 Verress needle with enhanced acoustical means
5137510 System and method for oxygenation of the heart using subpericardi...
5137518 Instantaneous vein entry indicator for intravenous needle
5135497 Large volume pressurized fluid dispenser
5125902 Sheath/obturator to facilitate insertion of medical devices into ...
5121760 Fingernail guard
5119847 Apparatus and method for axially twisting hair
5120226 Toy and teaching aid combination
5120318 Arthroscopy portal maker
5117846 Hairpiece and fitting method therefor
5114400 Blood withdrawal apparatus and method
5112221 Extrusion spring arm
5110296 Educational device for teaching a child to tie a bow
5105840 Dental floss holder
5106374 Ambulatory infusion device
5104381 Pneumoneedle with removable stylet assembly
5103845 Manicure shield
5102389 Membrane composite
 
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