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
Antenna module and wireless communication apparatus
Projection illumination system for EUV microlithography
Sperm factor sequences
Prodrugs of [4 [4-(5-Aminomethyl-2-fluoro-phenyl)-piperidin-1-yl]-(1H-pyrrolo-pyridin-yl- )-methanones and synthesis thereof
Methods and systems for representing missed approach information in perspective view on a cockpit display
Headphone
Method for using directing cells for specific stem/progenitor cell activation and differentiation
  Randomly Featured Patents
Footwear upper portion
Method and apparatus for inducing audio vibrations
Combustion efficiency enhancing apparatus of liquid fuel
Hydraulically actuated breast roll shake
Devices, systems, and methods for tactile feedback and input
Plant hanger frame
Frame containing ceramic block for producing dental crowns and bridges
Compressed instruction format for use in a VLIW processor and processor for processing such instructions
Supporting device
Optical scanner apparatuses and optical scanning methods