Dr.
Willard H. Bennett
Dr. Willard Bennett joined
NCSU in 1961 as Burlington Professor of Physics. He received his 67th
and final patent in 1987 for his work on developing ways to accelerate
very dense aggregates of ions to achieve higher energies per ion.
Photograph of Dr.
Willard Bennett and colleagues at the U.S. Naval Research Laboratory working
on an experimental tube Bennett developed called the St?rmertron. In this
tube he produced all of the forms of streams found in space as well as
the doughnut-shaped rings of charged particles around the earth later
known as, the Van Allen radiation belts. Dr. Willard H. Bennett's was
inducted into the National Inventors Hall of Fame in 1991. Bennett was
honored for his
invention of the Bennett radio frequency mass spectrometer patented in
1955. To see the press release click on image:
Dr.
Daniel Comins
Professor Daniel Comins'
patents center on methods of making asymmetric DE ring intermediates
for the synthesis of camptothecin and camptothecin analogs. He has received
eighteen patents for this research. Camptothecin is an antitumor alkaloid,
and this new approach to the compound has been used by scientists to prepare
potential anti-cancer drugs.
The following is an example
of one of Comins' patents.
Intermediates and
method of making camptothecin and camptothecin analogs
U.S. Patent Number 5,162,532
Click
on the images to view patent information. |
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Dr.
Charles McGee Heck
These photographs are examples
of Prof. Heck's work with spiral crystals and various meteorological instruments
including a heat measuring device.
Charles
McGee Heck was a professor and Head of the Physics Department at NC
State University. He discovered the first known spiral crystal and
devised the multiple radiator for meteorological research and weather
forcasting. |
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Dr.
James Martin
Professor James Martin's
patent of Luminescent Copper Aluminum Materials, U.S. Patent Number 5,876,637,
concerns a class of materials that are brilliant blue phosphors. The luminescence
of these materials is readily and reversibly quenched by small molecules
such as CO, benzene, ethylene, and NO, making this material useful as
a sensor and gas storage and separation material.
Luminescent
copper aluminum halide materials
U.S.
Patent Number 5,876,637
Click
on image to enlarge. |
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Halo-zeo-type
materials
U.S.
Patent Number 5,885,542
A new family
of materials, including several compositions of matter, have been
created in which Lewis acidic and redox active metal-halide centers are
constructed into microporous frameworks. Based on the structural relationships
between SiO2 and ZnCl2 this new family of copper zinc halide materials
form direct structural analogs to the widely used microporous aluminosilicate
materials described as Zeolites. These microporous materials are formed
by growing an inorganic network around a molecular or ionic template to
create the cage and channel structures such as those shown. The microporous
cage and channel structure provides very high surface areas to support
chemical reactivity, making them valuable as catalyst materials. Furthermore,
molecular and ionic templates create pores in the crystalline structures
of molecular dimensions, so these microporous materials can be viewed
as molecular-sized reaction chambers that induce a size and shape selectivity
to chemical reactions. By constructing such frameworks out of reactive
metal-halides (CuCl, ZnCl2 , and AlCl3) instead of the more stable oxides
(SiO2 and Al2O3, the components of many rocks), new chemical reactivity
of microporous frameworks can be achieved. Varied syntheses of these metal-halide
framework materials result in the formation of nano-scale dispersions.
Alternatively, glassy preparations of the templated networks exhibit birefringent
optical properties.
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