Daniel P Sanders

US Patent:

7507854, Mar 24, 2009

Filed:

Aug 23, 2004

Appl. No.:

10/924743

Inventors:

Choon Woo Lee - La Canada CA, US
Soon Hyeok Hong - Pasadena CA, US
Daniel P. Sanders - Pasadena CA, US
Robert H. Grubbs - South Pasadena CA, US
Richard L. Pederson - San Gabriel CA, US

Assignee:

Materia, Inc. - Pasadena CA

International Classification:

C07C 69/52

US Classification:

560205

Abstract:

The present invention relates to the use of isomerization inhibitors in olefin metathesis reactions. The inhibitors are low molecular weight organic acids such as formic acid, acetic acid, benzoic acid, and the like.

US Patent:

7514063, Apr 7, 2009

Filed:

Feb 8, 2008

Appl. No.:

12/028149

Inventors:

George S Tulevski - White Plains NY, US
Daniel P Sanders - San Jose CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

C01B 31/02

US Classification:

423460, 210638, 210749, 209 1, 209155, 423461, 977748, 977751, 977842, 977845, 977847

Abstract:

A method of obtaining purified semiconducting SWCNTs from a bulk mixture of metallic SWCNTs and semiconducting SWCNTs by first creating an aqueous solution containing the bulk mixture and adding a functionalized particle or nanoparticle to the solution, whereby the functionalized particle or nanoparticle reacts chemically with the metallic SWCNTs to form a high density particle-nanotube composite that can be physically separated by centrifugation.

US Patent:

20030100776, May 29, 2003

Filed:

Apr 1, 2002

Appl. No.:

10/114418

Inventors:

Robert Grubbs - South Pasadena CA, US
Arnab Chatterjee - Pasadena CA, US
Steven Goldberg - Pasadena CA, US
Jennifer Love - Pasadena CA, US
John Morgan - Pasadena CA, US
Daniel Sanders - Pasadena CA, US
Matthias Scholl - Cambridge MA, US
F. Toste - Pasadena CA, US
Tina Trnka - Pasadena CA, US

International Classification:

C07F007/30
C07F007/22
C07F005/02
C07F009/02

US Classification:

549/513000, 556/087000, 556/465000, 558/207000, 558/357000, 568/001000, 568/028000, 564/463000

Abstract:

The invention pertains to the use of Group 8 transition metal carbene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene ligand are used to catalyze cross-metathesis reactions to provide a variety of substituted and functionalized olefins, including phosphonate-substituted olefins, directly halogenated olefins, 1,1,2-trisubstituted olefins, and quaternary allylic olefins. The invention further provides a method for creating functional diversity using the aforementioned complexes to catalyze cross-metathesis reactions of a first olefinic reactant, which may or may not be substituted with a functional group, with each of a plurality of different olefinic reactants, which may or may not be substituted with functional groups, to give a plurality of structurally distinct olefinic products. The methodology of the invention is also useful in facilitating the stereoselective synthesis of 1,2-disubstituted olefins in the cis configuration.

US Patent:

20050261451, Nov 24, 2005

Filed:

Mar 29, 2005

Appl. No.:

11/094102

Inventors:

Thay Ung - Los Angeles CA, US
Yann Schrodi - Pasadena CA, US
Mark Trimmer - Monrovia CA, US
Andrew Hejl - Pasadena CA, US
Daniel Sanders - Pasadena CA, US
Robert Grubbs - South Pasadena CA, US

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

C08F004/80
C07F015/00

US Classification:

526171000, 526172000, 546002000, 548101000

Abstract:

The invention provides novel organometallic complexes useful as olefin metathesis catalysts. The complexes have an N-heterocyclic carbene ligand and a chelating carbene ligand associated with a Group 8 transition metal center. The molecular structure of the complexes can be altered so as to provide a substantial latency period. The complexes are particularly useful in catalyzing ring closing metathesis of acyclic olefins and ring opening metathesis polymerization of cyclic olefins.

US Patent:

20070155975, Jul 5, 2007

Filed:

Nov 13, 2006

Appl. No.:

11/559399

Inventors:

Robert Grubbs - South Pasadena CA, US
Arnab Chatterjee - Pasadena CA, US
Steven Godberg - Pasadena CA, US
Jennifer Love - Pasadena CA, US
John Morgan - Pasadena CA, US
Daniel Sanders - Pasadena CA, US
Matthias Scholl - Cambridge MA, US
F. Toste - Pasadena CA, US
Tina Trnka - Pasadena CA, US

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

C07F 9/02
C07F 5/02
C07F 7/00
C07C 31/34
C07C 205/02
C07C 319/02

US Classification:

556081000, 556466000, 568001000, 568061000, 568841000, 568943000, 568009000, 564086000, 564123000

Abstract:

The invention pertains to the use of Group 8 transition metal carbene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene ligand are used to catalyze cross-metathesis reactions to provide a variety of substituted and functionalized olefins, including phosphonate-substituted olefins, directly halogenated olefins, 1,1,2-trisubstituted olefins, and quaternary allylic olefins. The invention further provides a method for creating functional diversity using the aforementioned complexes to catalyze cross-metathesis reactions of a first olefinic reactant, which may or may not be substituted with a functional group, with each of a plurality of different olefinic reactants, which may or may not be substituted with functional groups, to give a plurality of structurally distinct olefinic products. The methodology of the invention is also useful in facilitating the stereoselective synthesis of 1,2-disubstituted olefins in the cis configuration.

US Patent:

49535064, Sep 4, 1990

Filed:

Apr 21, 1988

Appl. No.:

7/184437

Inventors:

Daniel T. Sanders - Atlanta GA

International Classification:

A01K 500

US Classification:

119 61

Abstract:

An animal feeder including an elevated upper bowl portion is located on top of a sectional base portion. A generally flat circular disk having an annular moat region containing a sticky substance on the top surface is located in a recess of the base portion for trapping insects and the like as they attempt to gain access to a feeding area formed in the upper bowl portion. The base and upper bowl portion are connected together by means of a spring loaded bayonet type of interconnecting assembly.

US Patent:

6171559, Jan 9, 2001

Filed:

Dec 21, 1999

Appl. No.:

9/468659

Inventors:

Marcia Sanders - New York NY
Daniel Sanders - New York NY

International Classification:

A61L 200

US Classification:

422300

Abstract:

A toothbrush sterilization unit for sterilizing the bristle-head of at least one toothbrush with a disinfectant. The toothbrush sterilization unit includes a housing having an interior compartment. The interior compartment includes a plurality of docking stations for holding in place a plurality of toothbrushes. The housing includes a pumping system assembly for dispensing a disinfectant on the bristle-heads of the toothbrushes during a dispensing cycle. The housing also includes a rotary fan and a heating member for drying the disinfectant on the bristle-heads of the plurality of toothbrushes during a drying cycle.

US Patent:

44803699, Nov 6, 1984

Filed:

Feb 22, 1982

Appl. No.:

6/350991

Inventors:

Nicholas A. Sanders - Madison NJ
Daniel W. Sanders - Blaine MN

International Classification:

B25B 2700

US Classification:

29270

Abstract:

Stressing tendons used in prestressing concrete are generally anchored to the concrete by wedge plates which are embedded in the concrete. The anchorage is accomplished by the use of gripping wedges which are placed around the stressing tendons and into the wedge plates. A gripping tool is provided which inserts and seats, in a single operation, gripping wedges. The tool is generally comprised of a holding and guiding piece and a sliding mechanism.