Roberta E. Harelstad

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Eagan, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Nonlineaphores and polymers incorporating such nonlineaphores
- Patent number 5,256,784
- Issue date Oct 26, 1993
- Minnesota Mining and Manufacturing Company
- Cecil V. Francis
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polymeric charge transfer complexes for nonlinear optical applications
- Patent number 5,185,102
- Issue date Feb 9, 1993
- Minnesota Mining and Manufacturing Company
- Roberta E. Harelstad
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Second harmonic generation with N,N'-substituted barbituric acids
- Patent number 4,714,838
- Issue date Dec 22, 1987
- Minnesota Mining and Manufacturing Company
- Roberta E. Harelstad
- C07 - ORGANIC CHEMISTRY