Patents by Inventor Calvin W. Whiddon

Calvin W. Whiddon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Catalysts selective for the preparation of mixed ketones from a mixture of carboxylic acids
    Patent number: 7659432
    Abstract: Mixed ketones are prepared from a mixture of carboxylic acids in a process with high selectivity by using an improved catalyst. The catalyst contains zirconium dioxide or zirconium dioxide and titanium dioxide, and a Group 1 or 2 metal silicate or phosphate salt. The new catalyst is more selective toward the formation of the mixed ketone, as opposed to a symmetrical ketone.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: February 9, 2010
    Assignee: Eastman Chemical Company
    Inventors: Alexey V. Ignatchenko, Michelle Manichanh King, Zhufang Liu, Calvin W. Whiddon
  • CATALYSTS SELECTIVE FOR THE PREPARATION OF MIXED KETONES FROM A MIXTURE OF CARBOXYLIC ACIDS
    Publication number: 20090182173
    Abstract: Mixed ketones are prepared from a mixture of carboxylic acids in a process with high selectivity by using an improved catalyst. The catalyst contains zirconium dioxide or zirconium dioxide and titanium dioxide, and a Group 1 or 2 metal silicate or phosphate salt. The new catalyst is more selective toward the formation of the mixed ketone, as opposed to a symmetrical ketone.
    Type: Application
    Filed: July 1, 2008
    Publication date: July 16, 2009
    Inventors: Alexey V. Ignatchenko, Michelle Manichanh King, Zhufang Liu, Calvin W. Whiddon
  • Catalysts selective for the preparation of mixed ketones from a mixture of carboxylic acids
    Patent number: 7452841
    Abstract: Mixed ketones are prepared from a mixture of carboxylic acids in a process with high selectivity by using an improved catalyst. The catalyst contains zirconium dioxide or zirconium dioxide and titanium dioxide, and a Group 1 or 2 metal silicate or phosphate salt. The new catalyst is more selective toward the formation of the mixed ketone, as opposed to a symmetrical ketone.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: November 18, 2008
    Assignee: Eastman Chemical Company
    Inventors: Alexey V. Ignatchenko, Michelle Manichanh King, Zhufang Liu, Calvin W. Whiddon
  • Product sampler system and method
    Patent number: 6105441
    Abstract: A sampler assembly and a method of collecting a sample of a process are disclosed. The sampler assembly includes a lid subassembly and a housing body subassembly. The housing body subassembly includes a housing body that accommodates different sizes and shapes of collection bottles. The housing body includes lateral and axial adjustment devices with bottle engaging pads with surfaces that contact and support the collection bottle. The adjustment devices may be either manually or automatically adjusting components, and may be adjusted for any type of collection bottle. The lid subassembly includes a lid, a bracket coupled to the lid for supporting the sampler assembly, a plug disposed in the lid, a supply line and a vent line. The housing body subassembly includes a housing body releasable coupled to the lid, lateral and axial adjustment devices, and a shield to protect the operator.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: August 22, 2000
    Assignee: Eastman Chemical Company
    Inventors: David B. Conner, Antonio M. Mendez, Greg T. Slemons, Calvin W. Whiddon