Patents by Inventor Mark Danielsen
Mark Danielsen 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: 10246739Abstract: The present invention relates to a novel method for detecting a target polynucleotide having a target sequence, comprising hybridizing the target polynucleotide with a probe to form a hybrid; exposing the hybrid to a 5? exonuclease so that the probe in the hybrid is digested and the target polynucleotide is dissociated from the digested probe; repeating the hybridization step and the digestion step; and detecting the digested probes. The presence of the digested probes indicates the presence of the target polynucleotide.Type: GrantFiled: March 14, 2014Date of Patent: April 2, 2019Assignee: GEORGETOWN UNIVERSITYInventors: Mark Danielsen, Berenice Alfonso, Bolor Tumurpurev
-
Patent number: 10023905Abstract: The present invention relates to a novel method for detecting a target polynucleotide having a target sequence, comprising (a) exposing the target polynucleotide to an initiating oligonucleotide; (b) extending the initiating oligonucleotide with an extended sequence complementary to the target sequence; (c) ligating the initiating oligonucleotide sequence with the extended sequence to form a circular oligonucleotide having a nicking endonuclease (NE) recognition/cutting sequence; (d) exposing the circular oligonucleotide to a DNA polymerase and a DNA synthesis primer to synthesize DNA having a NE recognition sequence; (e) exposing the synthesized DNA to a probe having the NE recognition/cutting sequence to form a double stranded DNA having a full NE site; (f) exposing the double stranded DNA to a nicking endonuclease (NE) to cleave the probe; and (g) detecting the cleaved probe. The presence of the cleaved probe indicates the presence of the target polynucleotide.Type: GrantFiled: March 14, 2014Date of Patent: July 17, 2018Assignee: Georgetown UniversityInventors: Mark Danielsen, Berenice Alfonso, Bolor Tumurpurev
-
Patent number: 9562258Abstract: A method for detecting the presence of a target nucleotide sequence in a sample of DNA is described herein in which a test sample comprising single stranded DNA is exposed to a DNA probe and a nicking endonuclease under conditions that would permit sequence-specific hybridization of the probe to a complementary target sequence. The probe comprises a sequence complementary to the target sequence to be detected and this sequence also includes a recognition sequence for the nicking endonuclease. If the sample contains the target sequence, the probe hybridizes to the target and is cleaved by the nicking endonuclease, which leaves the target intact. Observing the presence of probe cleaved by the nicking endonuclease indicates the presence of the target nucleotide sequence in the sample of DNA.Type: GrantFiled: February 3, 2014Date of Patent: February 7, 2017Assignee: Georgetown UniversityInventors: Mark Danielsen, Joel Credle, Eugene A. Davidson, Kenneth L. Dretchen
-
Patent number: 9012142Abstract: A method for detecting the presence of a target nucleotide sequence in a sample of DNA is described herein in which a test sample comprising single stranded DNA is exposed to a DNA probe and a nicking endonuclease under conditions that would permit sequence-specific hybridization of the probe to a complementary target sequence. The probe comprises a sequence complementary to the target sequence to be detected and this sequence also includes a recognition sequence for the nicking endonuclease. If the sample contains the target sequence, the probe hybridizes to the target and is cleaved by the nicking endonuclease, which leaves the target intact. Observing the presence of probe cleaved by the nicking endonuclease indicates the presence of the target nucleotide sequence in the sample of DNA.Type: GrantFiled: February 15, 2006Date of Patent: April 21, 2015Assignee: Georgetown UniversityInventors: Mark Danielsen, Eugene A. Davidson, Kenneth L. Dretchen, Traci K. Pals
-
Publication number: 20140349285Abstract: The present invention relates to a novel method for detecting a target polynucleotide having a target sequence, comprising (a) exposing the target polynucleotide to an initiating oligonucleotide; (b) extending the initiating oligonucleotide with an extended sequence complementary to the target sequence; (c) ligating the initiating oligonucleotide sequence with the extended sequence to form a circular oligonucleotide having a nicking endonuclease (NE) recognition/cutting sequence; (d) exposing the circular oligonucleotide to a DNA polymerase and a DNA synthesis primer to synthesize DNA having a NE recognition sequence; (e) exposing the synthesized DNA to a probe having the NE recognition/cutting sequence to form a double stranded DNA having a full NE site; (f) exposing the double stranded DNA to a nicking endonuclease (NE) to cleave the probe; and (g) detecting the cleaved probe. The presence of the cleaved probe indicates the presence of the target polynucleotide.Type: ApplicationFiled: March 14, 2014Publication date: November 27, 2014Applicant: GEORGETOWN UNIVERSITYInventors: Mark Danielsen, Berenice Alfonso, Bolor Tumurpurev
-
Publication number: 20140349286Abstract: The present invention relates to a novel method for detecting a target polynucleotide having a target sequence, comprising hybridizing the target polynucleotide with a probe to form a hybrid; exposing the hybrid to a 5? exonuclease so that the probe in the hybrid is digested and the target polynucleotide is dissociated from the digested probe; repeating the hybridization step and the digestion step; and detecting the digested probes. The presence of the digested probes indicates the presence of the target polynucleotide.Type: ApplicationFiled: March 14, 2014Publication date: November 27, 2014Applicant: GEORGETOWN UNIVERSITYInventors: Mark Danielsen, Berenice Alfonso, Bolor Tumurpurev
-
Publication number: 20140256577Abstract: A method for detecting the presence of a target nucleotide sequence in a sample of DNA is described herein in which a test sample comprising single stranded DNA is exposed to a DNA probe and a nicking endonuclease under conditions that would permit sequence-specific hybridization of the probe to a complementary target sequence. The probe comprises a sequence complementary to the target sequence to be detected and this sequence also includes a recognition sequence for the nicking endonuclease. If the sample contains the target sequence, the probe hybridizes to the target and is cleaved by the nicking endonuclease, which leaves the target intact. Observing the presence of probe cleaved by the nicking endonuclease indicates the presence of the target nucleotide sequence in the sample of DNA.Type: ApplicationFiled: February 3, 2014Publication date: September 11, 2014Applicant: Georgetown UniversityInventors: Mark DANIELSEN, Joel Credle, Eugene A. Davidson, Kenneth L. Dretchen
-
Publication number: 20120065088Abstract: A method for detecting the presence of a target nucleotide sequence in a sample of DNA is described herein in which a test sample comprising single stranded DNA is exposed to a DNA probe and a nicking endonuclease under conditions that would permit sequence-specific hybridization of the probe to a complementary target sequence. The probe comprises a sequence complementary to the target sequence to be detected and this sequence also includes a recognition sequence for the nicking endonuclease. If the sample contains the target sequence, the probe hybridizes to the target and is cleaved by the nicking endonuclease, which leaves the target intact. Observing the presence of probe cleaved by the nicking endonuclease indicates the presence of the target nucleotide sequence in the sample of DNA.Type: ApplicationFiled: February 23, 2010Publication date: March 15, 2012Applicant: Georgetown UniversityInventors: Mark Danielsen, Joel Credle, Eugene A. Davidson, Kenneth L. Dretchen
-
Patent number: 8109522Abstract: A stabilizer bar system that includes a first stabilizer bar, a second stabilizer bar and a clutch having a clutch housing and a plurality of coupling members housed in the clutch housing. The first stabilizer bar is received in the clutch housing for rotation relative to the clutch housing about a rotational axis. The second stabilizer bar is fixedly coupled to the clutch housing. The coupling members are configured to selectively non-rotatably couple the first stabilizer bar to the clutch housing such that the clutch housing is employed to transmit torque between the first and second stabilizer bars.Type: GrantFiled: January 6, 2011Date of Patent: February 7, 2012Assignee: American Axle & Manufacturing, Inc.Inventors: Andrew F. Pinkos, Todd M. York, Curt D. Gilmore, Gary A. Oliveira, Mark A. Danielsen
-
Publication number: 20110123980Abstract: A method for detecting the presence of a target nucleotide sequence in a sample of DNA is described herein in which a test sample comprising single stranded DNA is exposed to a DNA probe and a nicking endonuclease under conditions that would permit sequence-specific hybridization of the probe to a complementary target sequence. The probe comprises a sequence complementary to the target sequence to be detected and this sequence also includes a recognition sequence for the nicking endonuclease. If the sample contains the target sequence, the probe hybridizes to the target and is cleaved by the nicking endonuclease, which leaves the target intact. Observing the presence of probe cleaved by the nicking endonuclease indicates the presence of the target nucleotide sequence in the sample of DNA.Type: ApplicationFiled: February 15, 2006Publication date: May 26, 2011Applicant: GEORGETOWN UNIVERSITYInventors: Mark Danielsen, Eugene A. Davidson, Kenneth L. Dretchen, Traci L. Pals
-
Publication number: 20110101631Abstract: A stabilizer bar system that includes a first stabilizer bar, a second stabilizer bar and a clutch having a clutch housing and a plurality of coupling members housed in the clutch housing. The first stabilizer bar is received in the clutch housing for rotation relative to the clutch housing about a rotational axis. The second stabilizer bar is fixedly coupled to the clutch housing. The coupling members are configured to selectively non-rotatably couple the first stabilizer bar to the clutch housing such that the clutch housing is employed to transmit torque between the first and second stabilizer bars.Type: ApplicationFiled: January 6, 2011Publication date: May 5, 2011Inventors: Andrew F. Pinkos, Todd M. York, Curt D. Gilmore, Gary A. Oliveira, Mark A. Danielsen
-
Patent number: 7909339Abstract: A vehicle stabilizer bar assembly having a pair of stabilizer bar members that are selectively uncoupled via a clutch. The clutch includes a moving element that can be selectively moved via an actuator to effect the uncoupling of the stabilizer bar members. The actuator is configured to apply a force to the moving element concentrically about the axis along which the moving element translates. The clutch is configured to transmit torque from one of the stabilizer bar members to the other stabilizer bar member concentrically about the axis. A method for operating a vehicle stabilizer bar assembly is also provided.Type: GrantFiled: September 21, 2010Date of Patent: March 22, 2011Assignee: American Axle & Manufacturing, Inc.Inventors: Andrew F. Pinkos, Todd M. York, Curt D. Gilmore, Gary A. Oliveira, Mark A. Danielsen
-
Publication number: 20110006493Abstract: A vehicle stabilizer bar assembly having a pair of stabilizer bar members that are selectively uncoupled via a clutch. The clutch includes a moving element that can be selectively moved via an actuator to effect the uncoupling of the stabilizer bar members. The actuator is configured to apply a force to the moving element concentrically about the axis along which the moving element translates. The clutch is configured to transmit torque from one of the stabilizer bar members to the other stabilizer bar member concentrically about the axis. A method for operating a vehicle stabilizer bar assembly is also provided.Type: ApplicationFiled: September 21, 2010Publication date: January 13, 2011Inventors: Andrew F. Pinkos, Todd M. York, Curt D. Gilmore, Gary A. Oliveira, Mark A. Danielsen
-
Patent number: 7832739Abstract: A vehicle stabilizer bar assembly having a pair of stabilizer bar members that are selectively uncoupled via a clutch. The clutch includes a moving element that can be selectively moved via an actuator to effect the uncoupling of the stabilizer bar members. The actuator is configured to apply a force to the moving element concentrically about the axis along which the moving element translates. The clutch is configured to transmit torque from one of the stabilizer bar members to the other stabilizer bar member concentrically about the axis. A method for operating a vehicle stabilizer bar assembly is also provided.Type: GrantFiled: October 29, 2007Date of Patent: November 16, 2010Assignee: American Axle & Manufacturing, Inc.Inventors: Andrew F. Pinkos, Todd M. York, Curt D. Gilmore, Gary A. Oliveira, Mark A. Danielsen
-
Publication number: 20080106055Abstract: A vehicle stabilizer bar assembly having a pair of stabilizer bar members that are selectively uncoupled via a clutch. The clutch includes a moving element that can be selectively moved via an actuator to effect the uncoupling of the stabilizer bar members. The actuator is configured to apply a force to the moving element concentrically about the axis along which the moving element translates. The clutch is configured to transmit torque from one of the stabilizer bar members to the other stabilizer bar member concentrically about the axis. A method for operating a vehicle stabilizer bar assembly is also provided.Type: ApplicationFiled: October 29, 2007Publication date: May 8, 2008Inventors: Andrew F. Pinkos, Todd M. York, Curt D. Gilmore, Gary A. Oliveira, Mark A. Danielsen
-
Patent number: 6093133Abstract: The present invention provides a means to learn and accommodate the amount of air that needs to be purged from a clutch circuit after being off for a predetermined time. The scheme helps to maintain proper control timing as necessary for good shift quality and clutch durability and further helps to minimize unnecessary delays in clutch application. Once the air has been purged, then normal control timing can be resumed.Type: GrantFiled: April 1, 1999Date of Patent: July 25, 2000Assignee: DaimlerChrysler CorporationInventors: Mark A. Danielsen, Hussein A. Dourra, Gerald L. Holbrook