Patents by Inventor Alan W. Decho
Alan W. Decho 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).
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Patent number: 9872917Abstract: Anion-paired metallocene-containing compounds are generally provided, along with methods of making the same. In one embodiment, the anion-paired metallocene-containing compound includes a cationic metallocene moiety covalently connected to an organic functional group, and an anion paired to the cationic metallocene moiety. Generally, the cationic metallocene moiety comprises two cyclopentadienyl anions bound to a metal center in the oxidation state I.Type: GrantFiled: June 28, 2016Date of Patent: January 23, 2018Assignee: University of South CarolinaInventors: Chuanbing Tang, Jiuyang Zhang, Yung-Pin Chen, Alan W. Decho
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Publication number: 20170080096Abstract: Anion-paired metallocene-containing compounds are generally provided, along with methods of making the same. In one embodiment, the anion-paired metallocene-containing compound includes a cationic metallocene moiety covalently connected to an organic functional group, and an anion paired to the cationic metallocene moiety. Generally, the cationic metallocene moiety comprises two cyclopentadienyl anions bound to a metal center in the oxidation state I.Type: ApplicationFiled: June 28, 2016Publication date: March 23, 2017Inventors: Chuanbing Tang, Jiuyang Zhang, Yung-Pin Chen, Alan W. Decho
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Patent number: 9402394Abstract: Anion-paired metallocene-containing compounds are generally provided, along with methods of making the same. In one embodiment, the anion-paired metallocene-containing compound includes a cationic metallocene moiety covalently connected to an organic functional group, and an anion paired to the cationic metallocene moiety. Generally, the cationic metallocene moiety comprises two cyclopentadienyl anions bound to a metal center in the oxidation state I.Type: GrantFiled: April 4, 2014Date of Patent: August 2, 2016Assignee: University of South CarolinaInventors: Chuanbing Tang, Jiuyang Zhang, Yung-Pin Chen, Alan W. Decho
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Patent number: 9357775Abstract: Methods for forming rosin-derived cationic compounds are provided. The method can include attaching a cationic group to a conjugated diene on a hydrophenathrene-based ring of a resin acid (e.g., levopimaric acid, abietic acid, dehydroabietic acid, or a mixture thereof) to form a rosin-derived cationic compound. Attaching the cationic group to the conjugated diene on the hydrophenathrene-based ring of the resin acid can be achieved via a Diels-Alder reaction of a dienophile with the hydrophenathrene-based ring of the resin acid. Rosin-derived cationic compounds are also provided. The rosin-derived cationic compound can include a cationic group attached to a conjugated diene on a hydrophenathrene-based ring of a resin acid, wherein the rosin-derived cationic compound further comprises a carboxylic acid group.Type: GrantFiled: November 17, 2014Date of Patent: June 7, 2016Assignee: University of South CarolinaInventors: Chuanbing Tang, Jifu Wang, Alan W. Decho, Yung Pin Chen
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Publication number: 20150073092Abstract: Methods for forming rosin-derived cationic compounds are provided. The method can include attaching a cationic group to a conjugated diene on a hydrophenathrene-based ring of a resin acid (e.g., levopimaric acid, abietic acid, dehydroabietic acid, or a mixture thereof) to form a rosin-derived cationic compound. Attaching the cationic group to the conjugated diene on the hydrophenathrene-based ring of the resin acid can be achieved via a Diels-Alder reaction of a dienophile with the hydrophenathrene-based ring of the resin acid. Rosin-derived cationic compounds are also provided. The rosin-derived cationic compound can include a cationic group attached to a conjugated diene on a hydrophenathrene-based ring of a resin acid, wherein the rosin-derived cationic compound further comprises a carboxylic acid group.Type: ApplicationFiled: November 17, 2014Publication date: March 12, 2015Inventors: Chuanbing Tang, Jifu Wang, Alan W. Decho, Yung Pin Chen
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Patent number: 8932807Abstract: A cell-lysate extract based assay reagent for detecting quorum sensing signals is generally provided, along with methods of making and using the same. The assay reagent generally includes a cell-lysate extract formed from a biosensor bacterium (e.g., Agrobacterium tumefaciens NTL4 (pCF218)(pCF372)) and a detecting substrate (e.g., an absorbance-based or luminescence-based substrate). The cell-lysate extract can be prepared by (1) disrupting the cell membranes of the biosensor bacterium to release the cellular components into a solution, (2) centrifuging the resulting solution, and (3) removing the resulting supernatant solution.Type: GrantFiled: October 1, 2013Date of Patent: January 13, 2015Assignee: University of South CarolinaInventors: Alan W. Decho, Tomohiro Kawaguchi, Yung-pin Chen
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Patent number: 8901245Abstract: Methods for forming rosin-derived cationic compounds are provided. The method can include attaching a cationic group to a conjugated diene on a hydrophenathrene-based ring of a resin acid (e.g., levopimaric acid, abietic acid, dehydroabietic acid, or a mixture thereof) to form a rosin-derived cationic compound. Attaching the cationic group to the conjugated diene on the hydrophenathrene-based ring of the resin acid can be achieved via a Diels-Alder reaction of a dienophile with the hydrophenathrene-based ring of the resin acid. Rosin-derived cationic compounds are also provided. The rosin-derived cationic compound can include a cationic group attached to a conjugated diene on a hydrophenathrene-based ring of a resin acid, wherein the rosin-derived cationic compound further comprises a carboxylic acid group.Type: GrantFiled: December 10, 2013Date of Patent: December 2, 2014Assignee: University of South CarolinaInventors: Chuanbing Tang, Jifu Wang, Alan W. Decho, Yung Pin Chen
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Publication number: 20140303326Abstract: Anion-paired metallocene-containing compounds are generally provided, along with methods of making the same. In one embodiment, the anion-paired metallocene-containing compound includes a cationic metallocene moiety covalently connected to an organic functional group, and an anion paired to the cationic metallocene moiety. Generally, the cationic metallocene moiety comprises two cyclopentadienyl anions bound to a metal center in the oxidation state I.Type: ApplicationFiled: April 4, 2014Publication date: October 9, 2014Inventors: Chuanbing Tang, Jiuyang Zhang, Yung-Pin Chen, Alan W. Decho
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Publication number: 20140163174Abstract: Methods for forming rosin-derived cationic compounds are provided. The method can include attaching a cationic group to a conjugated diene on a hydrophenathrene-based ring of a resin acid (e.g., levopimaric acid, abietic acid, dehydroabietic acid, or a mixture thereof) to form a rosin-derived cationic compound. Attaching the cationic group to the conjugated diene on the hydrophenathrene-based ring of the resin acid can be achieved via a Diels-Alder reaction of a dienophile with the hydrophenathrene-based ring of the resin acid. Rosin-derived cationic compounds are also provided. The rosin-derived cationic compound can include a cationic group attached to a conjugated diene on a hydrophenathrene-based ring of a resin acid, wherein the rosin-derived cationic compound further comprises a carboxylic acid group.Type: ApplicationFiled: December 10, 2013Publication date: June 12, 2014Inventors: Chuanbing Tang, Jifu Wang, Alan W. Decho, Yung Pin Chen
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Publication number: 20140030750Abstract: A cell-lysate extract based assay reagent for detecting quorum sensing signals is generally provided, along with methods of making and using the same. The assay reagent generally includes a cell-lysate extract formed from a biosensor bacterium (e.g., Agrobacterium tumefaciens NTL4 (pCF218) (pCF372)) and a detecting substrate (e.g., an absorbance-based or luminescence-based substrate). The cell-lysate extract can be prepared by (1) disrupting the cell membranes of the biosensor bacterium to release the cellular components into a solution, (2) centrifuging the resulting solution, and (3) removing the resulting supernatant solution.Type: ApplicationFiled: October 1, 2013Publication date: January 30, 2014Inventors: Alan W. Decho, Tomohiro Kawaguchi, Yung-pin Chen
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Patent number: 8604128Abstract: Methods for forming rosin-derived cationic compounds are provided. The method can include attaching a cationic group to a conjugated diene on a hydrophenathrene-based ring of a resin acid (e.g., levopimaric acid, abietic acid, dehydroabietic acid, or a mixture thereof) to form a rosin-derived cationic compound. Attaching the cationic group to the conjugated diene on the hydrophenathrene-based ring of the resin acid can be achieved via a Diels-Alder reaction of a dienophile with the hydrophenathrene-based ring of the resin acid. Rosin-derived cationic compounds are also provided. The rosin-derived cationic compound can include a cationic group attached to a conjugated diene on a hydrophenathrene-based ring of a resin acid, wherein the rosin-derived cationic compound further comprises a carboxylic acid group.Type: GrantFiled: February 15, 2012Date of Patent: December 10, 2013Assignee: University of South CarolinaInventors: Chuanbing Tang, Jifu Wang, Alan W. Decho, Yung Pin Chen
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Patent number: 8546071Abstract: A cell-lysate extract based assay reagent for detecting quorum sensing signals is generally provided, along with methods of making and using the same. The assay reagent generally includes a cell-lysate extract formed from a biosensor bacterium (e.g., Agrobacterium tumefaciens NTL4 (pCF218)(pCF372)) and a detecting substrate (e.g., an absorbance-based or luminescence-based substrate). The cell-lysate extract can be prepared by (1) disrupting the cell membranes of the biosensor bacterium to release the cellular components into a solution, (2) centrifuging the resulting solution, and (3) removing the resulting supernatant solution.Type: GrantFiled: July 28, 2008Date of Patent: October 1, 2013Assignee: University of South CarolinaInventors: Alan W. Decho, Tomohiro Kawaguchi, Yung-pin Chen
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Publication number: 20120214950Abstract: Methods for forming rosin-derived cationic compounds are provided. The method can include attaching a cationic group to a conjugated diene on a hydrophenathrene-based ring of a resin acid (e.g., levopimaric acid, abietic acid, dehydroabietic acid, or a mixture thereof) to form a rosin-derived cationic compound. Attaching the cationic group to the conjugated diene on the hydrophenathrene-based ring of the resin acid can be achieved via a Diels-Alder reaction of a dienophile with the hydrophenathrene-based ring of the resin acid. Rosin-derived cationic compounds are also provided. The rosin-derived cationic compound can include a cationic group attached to a conjugated diene on a hydrophenathrene-based ring of a resin acid, wherein the rosin-derived cationic compound further comprises a carboxylic acid group.Type: ApplicationFiled: February 15, 2012Publication date: August 23, 2012Applicant: UNIVERSITY OF SOUTH CAROLINAInventors: Chuanbing Tang, Jifu Wang, Alan W. Decho, Yung Pin Chen
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Publication number: 20120164672Abstract: A cell-lysate extract based assay reagent for detecting quorum sensing signals is generally provided, along with methods of making and using the same. The assay reagent generally includes a cell-lysate extract formed from a biosensor bacterium (e.g., Agrobacterium tumefaciens NTL4 (pCF218)(pCF372)) and a detecting substrate (e.g., an absorbance-based or luminescence-based substrate). The cell-lysate extract can be prepared by (1) disrupting the cell membranes of the biosensor bacterium to release the cellular components into a solution, (2) centrifuging the resulting solution, and (3) removing the resulting supernatant solution.Type: ApplicationFiled: July 28, 2008Publication date: June 28, 2012Applicant: UNIVERSITY OF SOUTH CAROLINAInventors: Alan W. Decho, Tomohiro Kawaguchi, Yung-pin Chen