Patents by Inventor David F. Kronholm

David F. Kronholm has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10239839
    Abstract: The present invention relates to compositions and methods of using free radical scavengers with reduced 1O2 generation. In certain embodiments, these compositions and methods of use relate to fullerene-derived ketolactams and fullerene-derived ketolactam derivatives, fullerene derivatives, and/or fullerenes. In yet other embodiments, the invention relates to cosmetic or dermatological compositions comprising said free radical scavengers with reduced 1O2 generation.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 26, 2019
    Assignee: Solenne BV
    Inventors: David F. Kronholm, Alexander B. Sieval, Jan C. Hummelen
  • Publication number: 20170037012
    Abstract: The present invention relates to compositions and methods of using free radical scavengers with reduced 1O2 generation. In certain embodiments, these compositions and methods of use relate to fullerene-derived ketolactams and fullerene-derived ketolactam derivatives, fullerene derivatives, and/or fullerenes. In yet other embodiments, the invention relates to cosmetic or dermatological compositions comprising said free radical scavengers with reduced 1O2 generation.
    Type: Application
    Filed: October 25, 2016
    Publication date: February 9, 2017
    Inventors: David F. Kronholm, Alexander B. Sieval, Jan C. Hummelen
  • Patent number: 9475810
    Abstract: The present invention relates to compositions and methods of using free radical scavengers with reduced 1O2 generation. In certain embodiments, these compositions and methods of use relate to fullerene-derived ketolactams and fullerene-derived ketolactam derivatives, fullerene derivatives, and/or fullerenes. In yet other embodiments, the invention relates to cosmetic or dermatological compositions comprising said free radical scavengers with reduced 1O2 generation.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: October 25, 2016
    Assignee: Solenne BV
    Inventors: David F. Kronholm, Alexander B. Sieval, Jan C. Hummelen
  • Patent number: 8945807
    Abstract: Disclosed are compositions of mixed fullerene derivatives with utility in organic semiconductors, and methods of making and using such compositions. In certain embodiments, the present invention relates to compositions of mixed fullerene derivatives further comprising one or more additional fullerene-based components within specified ranges. In certain other embodiments, the invention relates to methods of producing mixed fullerene derivatives of a specific composition from mixed fullerene starting materials, or pure fullerene derivatives of a specific composition from mixed fullerene derivatives. In yet other embodiments, the invention relates to semiconductors and devices comprising a composition of the invention.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: February 3, 2015
    Assignee: Solenne BV
    Inventors: David F. Kronholm, Jan C. Hummelen, Alexander B. Sieval, Patrick Van't Hof
  • Publication number: 20140080853
    Abstract: The present invention relates to compositions and methods of using free radical scavengers with reduced 1O2 generation. In certain embodiments, these compositions and methods of use relate to fullerene-derived ketolactams and fullerene-derived ketolactam derivatives, fullerene derivatives, and/or fullerenes. In yet other embodiments, the invention relates to cosmetic or dermatological compositions comprising said free radical scavengers with reduced 1O2 generation.
    Type: Application
    Filed: November 11, 2013
    Publication date: March 20, 2014
    Applicant: Solenne BV
    Inventors: David F. Kronholm, Alexander B. Sieval, Jan C. Hummelen
  • Patent number: 8580810
    Abstract: The present invention relates to compositions and methods of using free radical scavengers with reduced 1O2 generation. In certain embodiments, these compositions and methods of use relate to fullerene-derived ketolactams and fullerene-derived keto lactam derivatives, fullerene derivatives, and/or fullerenes. In yet other embodiments, the invention relates to cosmetic or dermatological compositions comprising said free radical scavengers with reduced 1O2 generation.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: November 12, 2013
    Assignee: Solenne BV
    Inventors: David F. Kronholm, Alexander B. Sieval, Jan C. Hummelen
  • Patent number: 8435713
    Abstract: Disclosed are compositions of mixed fullerene derivatives with utility in organic semiconductors, and methods of making and using such compositions. In certain embodiments, the present invention relates to compositions of mixed fullerene derivatives further comprising one or more additional fullerene-based components within specified ranges. In certain other embodiments, the invention relates to methods of producing mixed fullerene derivatives of a specific composition from mixed fullerene starting materials, or pure fullerene derivatives of a specific composition from mixed fullerene derivatives. In yet other embodiments, the invention relates to semiconductors and devices comprising a composition of the invention.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: May 7, 2013
    Assignee: Solenne BV
    Inventors: David F. Kronholm, Jan C. Hummelen, Alexander B. Sieval, Patrick Van't Hof
  • Publication number: 20120043507
    Abstract: Disclosed are compositions of mixed fullerene derivatives with utility in organic semiconductors, and methods of making and using such compositions. In certain embodiments, the present invention relates to compositions of mixed fullerene derivatives further comprising one or more additional fullerene-based components within specified ranges. In certain other embodiments, the invention relates to methods of producing mixed fullerene derivatives of a specific composition from mixed fullerene starting materials, or pure fullerene derivatives of a specific composition from mixed fullerene derivatives. In yet other embodiments, the invention relates to semiconductors and devices comprising a composition of the invention.
    Type: Application
    Filed: August 26, 2011
    Publication date: February 23, 2012
    Applicant: Solenne BV
    Inventors: DAVID F. KRONHOLM, Jan C. Hummelen, Alexander B. Sieval, Patrick Van't Hof
  • Patent number: 8076050
    Abstract: Disclosed are compositions of mixed fullerene derivatives with utility in organic semiconductors, and methods of making and using such compositions. In certain embodiments, the present invention relates to compositions of mixed fullerene derivatives further comprising one or more additional fullerene-based components within specified ranges. In certain other embodiments, the invention relates to methods of producing mixed fullerene derivatives of a specific composition from mixed fullerene starting materials, or pure fullerene derivatives of a specific composition from mixed fullerene derivatives. In yet other embodiments, the invention relates to semiconductors and devices comprising a composition of the invention.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: December 13, 2011
    Assignee: Solenne BV
    Inventors: David F. Kronholm, Jan C. Hummelen, Alexander B. Sieval, Patrick Van't Hof
  • Publication number: 20110089380
    Abstract: One aspect of the invention relates to compositions comprising one or more fullerene derivatives that comprise one or more covalent addends. In certain embodiments, the fullerene derivatives are selected from the group consisting of methanofullerene derivatives, Prato adduct fullerene derivatives, Diels-Alder fullerene derivatives, diazoline fullerene derivatives, Bingel fullerene derivatives, ketolactam fullerene derivatives, and azafulleroid fullerene derivatives. In certain embodiments, the fullerenes are C60 or C70 or a mixture thereof. The invention also relates to semiconductors, photodiodes, solar cells, photodectectors, and transistors comprising one or more fullerene derivatives that comprise one or more covalent addends.
    Type: Application
    Filed: September 22, 2008
    Publication date: April 21, 2011
    Inventors: Jan C. Hummelen, Floris Berend Kooistra, David F. Kronholm
  • Patent number: 7833493
    Abstract: A mode of combustion and multi-component reactor to accomplish this mode of combustion are disclosed which produces fullerenes and fullerenic material by combustion. This mode consists of de-coupling an oxidation region of a flame from a post-flame region, thus giving greater control over operating parameters, such as equivalence ratio, temperature, and pressure; allows conditions of the operating parameters of the combustion reaction to be attained which would not be easily attained by conventional methods; and offers the ability to more easily stabilize the combustion reactions to allow for higher throughputs of fuel and oxidant. Several embodiments of a primary zone of a multi-component reactor are also disclosed. Said primary zone serves as the oxidation region, operates on the principle of providing recycle to the reacting combustion mixture, and which may be operated as approximately a well-mixed reactor.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: November 16, 2010
    Assignee: Nano-C, Inc.
    Inventors: Jack B. Howard, David F. Kronholm, Anthony J. Modestino, Henning Richter
  • Patent number: 7833497
    Abstract: A method of processing fullerenes includes generating a gas stream having suspended soot particles and condensable gases, wherein the condensable gases comprising fullerenes, and separating at least a portion of the condensable gases from the suspended soot particles using a gas/solid separations process. At least a portion of the fullerenes in the condensable gases can be condensed and collected after separation of the condensable gases.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: November 16, 2010
    Assignee: Nano-C, LLC.
    Inventors: David F. Kronholm, Jack B. Howard
  • Patent number: 7825161
    Abstract: Chemically functionalized fullerenes are useful in various applications as radical scavengers. These chemically functionalized fullerenes offer the advantages of preservation of the high innate radical scavenging efficiency of the fullerene cage and ease of synthesis of fullerene derivatives of desirably altered chemical and physical properties and single isomers. Further, they are based on a common intermediate chemistry and intermediates can be easily functionalized and tailored to various requirements.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: November 2, 2010
    Assignee: Nano-C, Inc.
    Inventors: David F. Kronholm, Jan C. Hummelen, Alexander B. Sieval
  • Publication number: 20100249168
    Abstract: The present invention relates to compositions and methods of using free radical scavengers with reduced 1O2 generation. In certain embodiments, these compositions and methods of use relate to fullerene-derived ketolactams and fullerene-derived keto lactam derivatives, fullerene derivatives, and/or fullerenes. In yet other embodiments, the invention relates to cosmetic or dermatological compositions comprising said free radical scavengers with reduced 1O2 generation.
    Type: Application
    Filed: November 29, 2007
    Publication date: September 30, 2010
    Applicant: Solenne BV
    Inventors: David F. Kronholm, Alexander B. Sieval, Jan C. Hummelen
  • Patent number: 7771692
    Abstract: A mode of combustion and multi-component reactor to accomplish this mode of combustion are disclosed which produces fullerenes and fullerenic material by combustion. This mode consists of de-coupling an oxidation region of a flame from a post-flame region, thus giving greater control over operating parameters, such as equivalence ratio, temperature, and pressure; allows conditions of the operating parameters of the combustion reaction to be attained which would not be easily attained by conventional methods; and offers the ability to more easily stabilize the combustion reactions to allow for higher throughputs of fuel and oxidant. Several embodiments of a primary zone of a multi-component reactor are also disclosed. Said primary zone serves as the oxidation region, operates on the principle of providing recycle to the reacting combustion mixture, and which may be operated as approximately a well-mixed reactor.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: August 10, 2010
    Assignee: Nano-C, Inc.
    Inventors: Jack B. Howard, David F. Kronholm, Anthony J. Modestino, Henning Richter
  • Publication number: 20100127244
    Abstract: Disclosed are compositions of mixed fullerene derivatives with utility in organic semiconductors, and methods of making and using such compositions. In certain embodiments, the present invention relates to compositions of mixed fullerene derivatives further comprising one or more additional fullerene-based components within specified ranges. In certain other embodiments, the invention relates to methods of producing mixed fullerene derivatives of a specific composition from mixed fullerene starting materials, or pure fullerene derivatives of a specific composition from mixed fullerene derivatives. In yet other embodiments, the invention relates to semiconductors and devices comprising a composition of the invention.
    Type: Application
    Filed: July 6, 2007
    Publication date: May 27, 2010
    Applicant: Solenne BV
    Inventors: David F. Kronholm, Jan C. Hummelen, Alexander B. Sieval, Patrick Van't Hof
  • Publication number: 20090004069
    Abstract: A method of processing fullerenes includes generating a gas stream having suspended soot particles and condensable gases, wherein the condensable gases comprising fullerenes, and separating at least a portion of the condensable gases from the suspended soot particles using a gas/solid separations process. At least a portion of the fullerenes in the condensable gases can be condensed and collected after separation of the condensable gases.
    Type: Application
    Filed: September 8, 2008
    Publication date: January 1, 2009
    Applicant: NANO-C LLC
    Inventors: David F. KRONHOLM, Jack B. HOWARD
  • Publication number: 20080286190
    Abstract: A mode of combustion and multi-component reactor to accomplish this mode of combustion are disclosed which produces fullerenes and fullerenic material by combustion. This mode consists of de-coupling an oxidation region of a flame from a post-flame region, thus giving greater control over operating parameters, such as equivalence ratio, temperature, and pressure; allows conditions of the operating parameters of the combustion reaction to be attained which would not be easily attained by conventional methods; and offers the ability to more easily stabilize the combustion reactions to allow for higher throughputs of fuel and oxidant. Several embodiments of a primary zone of a multi-component reactor are also disclosed. Said primary zone serves as the oxidation region, operates on the principle of providing recycle to the reacting combustion mixture, and which may be operated as approximately a well-mixed reactor.
    Type: Application
    Filed: August 1, 2008
    Publication date: November 20, 2008
    Inventors: Jack B. HOWARD, David F. KRONHOLM, Anthony J. MODESTINO, Henning RICHTER
  • Publication number: 20080280240
    Abstract: A mode of combustion and multi-component reactor to accomplish this mode of combustion are disclosed which produces fullerenes and fullerenic material by combustion. This mode consists of de-coupling an oxidation region of a flame from a post-flame region, thus giving greater control over operating parameters, such as equivalence ratio, temperature, and pressure; allows conditions of the operating parameters of the combustion reaction to be attained which would not be easily attained by conventional methods; and offers the ability to more easily stabilize the combustion reactions to allow for higher throughputs of fuel and oxidant. Several embodiments of a primary zone of a multi-component reactor are also disclosed. Said primary zone serves as the oxidation region, operates on the principle of providing recycle to the reacting combustion mixture, and which may be operated as approximately a well-mixed reactor.
    Type: Application
    Filed: May 27, 2008
    Publication date: November 13, 2008
    Applicant: NANO-C, INC.
    Inventors: Jack B. HOWARD, David F. KRONHOLM, Anthony J. MODESTINO, Henning RICHTER
  • Patent number: 7435403
    Abstract: A method of processing fullerenes includes generating a gas stream having suspended soot particles and condensable gases, wherein the condensable gases comprise fullerenes, and separating at least a portion of the condensable gases from the suspended soot particles using a gas/solid separations process. At least a portion of the fullerenes in the condensable gases can be condensed and collected after separation of the condensable gases.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: October 14, 2008
    Assignee: Nano-C LLC
    Inventors: David F. Kronholm, Jack B. Howard