Alan Wesley Weimer
Engineers at Springhill Dr, Longmont, CO

8163336, Apr 24, 2012

Feb 19, 2010

12/708562

Alan W. Weimer - Niwot CO, US
Steven M. George - Boulder CO, US
Karen J. Buechler - Westminster CO, US
Jarod McCormick - Boulder CO, US

B32B 5/66

427212, 427128, 427214, 427215, 4272491, 4272495, 427255, 427581, 428403

Layers of a passivating material and/or containing luminescent centers are deposited on phosphor particles or particles that contain a host material that is capable of capturing an excitation energy and transferring it to a luminescent center or layer. The layers are formed in an ALD process. The ALD process permits the formation of very thin layers. Coated phosphors have good resistance to ambient moisture and oxygen, and/or can be designed to emit a distribution of desired light wavelengths.

6565820, May 20, 2003

May 19, 2000

09/574766

Alan W. Weimer - Niwot CO
Peter J. Czerpak - Albany NY
Patrick M. Hilbert - Silver Spring MD

University Technology Corporation - Boulder CO

C01B 700

423240S, 423DIG 12

Molten salt reactions are performed by supporting the molten salt on a particulate support and forming a fluidized bed of the supported salt particles. The method is particularly suitable for combusting hydrocarbon fuels at reduced temperatures, so that the formation NO species is reduced. When certain preferred salts are used, such as alkali metal carbonates, sulfur and halide species can be captured by the molten salt, thereby reducing SO and HCl emissions.

6613383, Sep 2, 2003

Jun 21, 2000

09/602602

Steven M. George - Boulder CO
John D. Ferguson - Boulder CO
Alan W. Weimer - Niwot CO

Regents of the University of Colorado - Boulder CO

B05D 700

427212, 427213, 427215, 427216, 427218, 428402, 428403, 428404

Particles have an ultrathin, conformal coating are made using atomic layer deposition methods. The base particles include ceramic and metallic materials. The coatings can also be ceramic or metal materials that can be deposited in a binary reaction sequence. The coated particles are useful as fillers for electronic packaging applications, for making ceramic or cermet parts, as supported catalysts, as well as other applications.

5756410, May 26, 1998

Feb 27, 1997

8/807165

Stephen D. Dunmead - Midland MI
Alan W. Weimer - Niwot CO

The Dow Chemical Company - Midland MI

C04B 3558, C01B 2100

501 961

A submicrometer transition metal carbonitride is produced having the formula: M. sub. a M'. sub. b M". sub. (1-a-b) (C. sub. 1-x) N. sub. x). sub. z wherein M is Ti, Zr or Hf; M' is V, Nb or Ta; M" is Cr, Mo or W; a ranges from 0 to 1; b ranges from 0 to 1 with the proviso that (a +b) is less than or equal to 1; x ranges from about 0. 02 to about 0. 95 and z ranges from about 0. 9 to about 2. The transition metal carbonitride is produced by mixing (a) a transition metal oxide source of a transition metal in the above formula and (b) a carbon source such as carbon black. This mixture is heated at a rate of between about 100K/sec to about 100,000,000K/sec in a nitrogen containing non-oxidizing gas such as nitrogen or nitrogen mixed with argon to an elevated temperature that makes carbothermal reduction of the transition metal oxide source thermodynamically favorable for a residence time sufficient to convert the transition metal oxide source into at least one product selected from the group consisting of (i) a transition metal carbonitride and (ii) a transition metal carbonitride precursor. The product may be exposed to a finishing step involving heating the product to a temperature less than the elevated temperature in a finishing atmosphere such as nitrogen, hydrogen, inert gas or combinations thereof to form submicrometer carbonitrides of higher purity or different stoichiometry.

2007028, Dec 6, 2007

May 8, 2007

11/801124

Alan Weimer - Niwot CO, US
Steven George - Boulder CO, US

A61K 8/29, A61K 8/27

424059000, 977926000

Particles have an ultrathin, conformal coating are made using atomic layer deposition methods. The base particles include ceramic and metallic materials. The coatings can also be ceramic or metal materials that can be deposited in a binary reaction sequence. The coated particles are useful as fillers for electronic packaging applications, for making ceramic or cermet parts, as supported catalysts, as well as other applications.

2013034, Dec 26, 2013

Mar 15, 2013

13/837824

Alan W. Weimer - Niwot CO, US
R. Scott Summers - Boulder CO, US
Allan Lewandowski - Evergreen CO, US

The Regents of the University of Colorado, a body corporate - Denver CO

C10B 23/00

201 25, 202 99, 202100, 201 41, 201 32, 201 38

A improved solar biochar reactor, system including the reactor, and methods of forming and using the reactors and systems are disclosed. The methods and system as described herein provide sufficient solar energy to a biochar reactor to convert animal waste or other biomass to biochar in a relatively cost-effective manner.

8133531, Mar 13, 2012

Mar 6, 2009

12/399145

David M. King - Boulder CO, US
Alan W. Weimer - Niwot CO, US

The Regents of the University of Colorado - Boulder CO

B05D 7/00, C23C 16/00

427214, 4272481, 427212, 427213, 427215

Titanium dioxide particles are coated first with an interstitial coating and then with silicon dioxide or alumina. The coatings are suitably applied via an atomic layer deposition process. The interstitial coating preserves the bright white coloration of the particles after they are coated. The particles therefore can be used as pigments and white fillers in polymers, paints, paper and other applications.

2006018, Aug 24, 2006

Nov 17, 2005

11/282116

Alan Weimer - Niwot CO, US
Christopher Perkins - Boulder CO, US
Allan Lewandowski - Evergreen CO, US
Carl Bingham - Lakewood CO, US

C01G 9/02

423622000, 423605000

The invention provides methods for reduction of metal oxide particles using a high temperature solar aerosol reactor. The invention also provides metal-oxide based processes for the generation of hydrogen from water splitting using a high temperature solar aerosol reactor. In addition, the invention provides solar thermal reactor systems suitable for use with these processes.

2013026, Oct 10, 2013

Apr 5, 2013

13/857951

The Regents of the University of Colorado, a body corporate - , US
Christopher Muhich - Grosse Pointe Park CO, US
Darwin Arifin - Boulder CO, US
Alan W. Weimer - Niwot CO, US
Aldo Steinfeld - Brugg, CH

C01B 3/06, C01B 31/18

4234182, 423579, 422162, 422129, 422187, 422600, 422186

A method and apparatus for gas-phase reduction/oxidation is disclosed. The apparatus includes a reactor including at least one reactor tube or containment vessel with active redox material within the reactor tube or containment vessel, a first reactant gas or vacuum for reducing the active redox material, and a second reactant gas for oxidizing the active redox material. The method may be run under substantially isothermal conditions and/or energy supplied to the apparatus may include solar energy, which may be concentrated.

7396862, Jul 8, 2008

Feb 6, 2004

10/773685

Alan W. Weimer - Niwot CO, US
Sotiris E. Pratsinis - Zurich, CH
Christos Angeletakis - Orange CA, US
Steven M. George - Boulder CO, US

A61K 6/083, B32B 18/00, B32B 19/00

523116, 523115, 106401, 428404

Dental composite filler materials comprise particles coated via an atomic layer deposition (ALD) process. The coating material has a different composition than the core particle. The difference in composition permits fine control over the refractive index of the coated particles, allowing good matching tooth enamel and to the binder materials used in the composite.