Donald F. Clemens

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Greenville, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for making compounds containing chelated metal ions and res...
- Patent number 4,888,421
- Issue date Dec 19, 1989
- Brooks M. Whitehurst
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Wet-process phosphoric acid brightening reagent for aluminum
- Patent number 4,530,735
- Issue date Jul 23, 1985
- Whitehurst Associates, Inc.
- Brooks M. Whitehurst
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Wet-process phosphoric acid brightening reagent for aluminum
- Patent number 4,496,465
- Issue date Jan 29, 1985
- Whitehurst Associates, Inc.
- Brooks M. Whitehurst
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Wet-process phosphoric acid brightening reagent for aluminum
- Patent number 4,496,466
- Issue date Jan 29, 1985
- Whitehurst Associates, Inc.
- Brooks M. Whitehurst
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Production of alkali metal glucoheptanate from sweet potatoes
- Patent number 4,444,794
- Issue date Apr 24, 1984
- Brooks M. Whitehurst
- A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
Information Patent Grant
Peat fuel slurry
- Patent number 4,437,863
- Issue date Mar 20, 1984
- Brooks M. Whitehurst
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...