Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Boyer; Carl W.
Address:
Wyalusing, PA
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
4612183 Method of producing crystalline ammonium metatungstate September 16, 1986
A method is disclosed for producing crystalline ammonium metatungstate from ammonium paratungstate. The method involves heating ammonium paratungstate in a multiple hearth furnace at from about 200.degree. C. to about 400.degree. C. to form a relatively uniformly heated ammonium para
4612181 Method of producing crystalline ammonium metatungstate September 16, 1986
A method is disclosed for producing crystalline ammonium metatungstate from ammonium paratungstate. The method involves heating the ammonium paratungstate in a multiple hearth furnace at from about 200.degree. C. to about 400.degree. C. to form a relatively uniformly heated ammonium
4560539 Removal of ammonia from sodium tungstate solutions December 24, 1985
A process is disclosed for removing ammonia from a sodium tungstate solution. The process involves heating the solution at from about 80.degree. C. to about 95.degree. C., while at the same time maintaining the pH above about 9.4 by addition of sodium hydroxide to the sodium tungstat
4360503 Recovery of tungsten values from alkali tungstate solutions by solvent extraction November 23, 1982
In a two component extraction system for producing ammonium tungstate from aqueous alkali metal tungstate from aqueous alkali metal tungstate solution, the stripped organic is washed to form a wash solution which is mixed with concentrated ammonia solution to form an aqueous ammonia










 
 
  Recently Added Patents
Digital to analog converter
Biometrics authentication device
Semiconductor packages and methods of packaging semiconductor devices
Compositions and methods for treating Friedreich's Ataxia
System and method for creating a secure trusted social network
Media services with access control
Anti-theft tag for a product having a ridged portion and method of use
  Randomly Featured Patents
Seat
Intragastric device
Method and apparatus for sterilizing intraluminal and percutaneous access sites
Apparatus for automatic measurement of resistance of integrated MR device
Method and apparatus of storing image data into a memory in a layout scanner system
Display device
Method of conserving waterlogged materials
Mobile communication system
Two-handled cue stick
Vehicle light with LED light source