Resources Contact Us Home
Perkins; Willis E.
Dallas, TX
No. of patents:

Patent Number Title Of Patent Date Issued
3999750 Artificial snowfall producing apparatus December 28, 1976
An artificial snow machine for display purposes includes a cylindrical container having an inverted conically shaped bottom. High pressure air is admitted to the interior of the container through a port at the apex of the cone to pressurize the container. A motor driven fan is mounted on

  Recently Added Patents
Detachably integrated battery charger for mobile cell phones and like devices
Systems and methods for implementing multi-application tabs and tab sets
Stand for food service
Launch cable case
Antenna arrangement and antenna housing
Method of synchronization for low power idle
Antibody recognizing turn structure in amyloid .beta.
  Randomly Featured Patents
Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
Electronic rights information processing system, method and apparatus for carrying out same and recorded medium for program carrying out the method
Data line with dynamic pull-up circuit
Interface module for a unit of an antenna distribution system, and antenna distribution system
Compact and stabilized arc high-pressure mercury lamp
French press coffee maker with assembly to reduce contact of grounds with liquid coffee after termination of steeping period
Memory device and method of programming thereof
Preparation of polytrimethylene ether glycol or copolymers thereof
System for difference calculation using a quad slope converter
Digital clear display material with bluing tint