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
Device for increasing chip testing efficiency and method thereof
Methods and system for providing drug pricing information from multiple pharmacy benefit managers (PBMs)
Video processing system and device with encoding and decoding modes and method for use therewith
Dynamic report mapping apparatus to physical data source when creating report definitions for information technology service management reporting for peruse of report definition transparency a
Laser protection polymeric materials
Enediyne compounds, conjugates thereof, and uses and methods therefor
ZNF217 a new prognostic and predictive biomarker of recurrent invasive and metastatic phenotypes in breast cancer
  Randomly Featured Patents
Liquid ejecting apparatus
Memory cell allowing write and erase with low voltage power supply and nonvolatile semiconductor memory device provided with the same
Display apparatus utilizing protective image for a period of display of 3D image
Transverse field annealing process to form E.A.S. marker having a step change in magnetic flux
Novel enzyme inhibitors
Silver halide color photographic material containing pyrazolo (1,5-b)(1,2,4)triazole magenta coupler
Small boats
Rolling bearing
Receiver and filter and adsorbent unit therefor
Apparatus for reducing oxidation of coffee