Patents by Inventor David W. Hawkins
David W. Hawkins 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).
-
Publication number: 20240183844Abstract: A disclosed system uses modulations of ionic current across a nanopore in a membrane to detect target molecules passing through the nanopore. This principle has been applied mainly to nucleic acid sequencing, but can also be used to detect other molecular targets such as proteins and small molecules. In addition, the system delivers target molecules to a nanopore to provide label-free single molecule analysis using a chip-based system. Target molecules are concentrated on microscale carrier beads, and the beads are delivered and optically trapped in an area within the capture radius of the nanopore. The target molecules are released from the beads and detected using nanopore current modulation. In addition, the disclosed system combines sample preparation (e.g. purification, extraction, and pre-concentration) with nanopore-based readout on a microfluidic chip.Type: ApplicationFiled: January 8, 2024Publication date: June 6, 2024Inventors: Holger Schmidt, Aaron Roe Hawkins, David W. Deamer
-
Patent number: 11936415Abstract: An air interface plane (AIP) of a radio frequency (RF) aperture includes: a circuit board having a first side and a second side opposite the first side; and a matrix of tapered elements arranged on the first side of the circuit board and secured to the circuit board, the matrix of tapered elements cooperating to at least one of receive or transmit an over-the-air RF signal. Suitably, each tapered element of the matrix has: a central hub extending along a longitudinal axis from a hub base which is proximate to the first side of the circuit board to an apex of the tapered element which is distal from the first side of the first circuit board; and a plurality of arms extending from the central hub at the apex of the tapered element, each of the plurality of arms including a first portion that projects the arm radially away from the longitudinal axis and a second portion that projects the arm longitudinally toward the first side of the circuit board.Type: GrantFiled: April 26, 2023Date of Patent: March 19, 2024Assignee: BATTELLE MEMORIAL INSTITUTEInventors: Raphael Joseph Welsh, Douglas A. Thornton, Mackenzie Jordan Hawkins, Micah John Meleski, Katherine M. Armitage, Daniel G. Loesch, Matthew E. Huntwork, David R. Chase, Erik W. Edwards, John Bartholomew, Thomas Lloyd Moffitt, Curt Hudberg
-
Patent number: 11913941Abstract: A disclosed system uses modulations of ionic current across a nanopore in a membrane to detect target molecules passing through the nanopore. This principle has been applied mainly to nucleic acid sequencing, but can also be used to detect other molecular targets such as proteins and small molecules. In addition, the system delivers target molecules to a nanopore to provide label-free single molecule analysis using a chip-based system. Target molecules are concentrated on microscale carrier beads, and the beads are delivered and optically trapped in an area within the capture radius of the nanopore. The target molecules are released from the beads and detected using nanopore current modulation. In addition, the disclosed system combines sample preparation (e.g. purification, extraction, and pre-concentration) with nanopore-based readout on a microfluidic chip.Type: GrantFiled: October 2, 2018Date of Patent: February 27, 2024Assignees: The Regents of the University of California, Brigham Young UniversityInventors: Holger Schmidt, Aaron Roe Hawkins, David W. Deamer
-
Patent number: 10767677Abstract: A blind fastener device for fastening at least two workpieces, including a sleeve, an expander having a tensioning section, a locking section, and an expansion section, and a nut. A portion of the expander passes through the sleeve to cooperate with the nut so that relative rotation of the expander and nut draws the expander's distal end toward the sleeve's proximal end thereby drawing a portion of the expansion section of the expander into a structural region located on the sleeve and expanding at least a portion of the sleeve's structural region, and drawing a portion of the locking section past the sleeve's distal end toward the sleeve's proximal end and deforming at least a portion of the sleeve's distal end to a locked state.Type: GrantFiled: January 25, 2019Date of Patent: September 8, 2020Assignee: SKY CLIMBER TOWER SOLUTIONS LLCInventors: George M. Anasis, David W. Hawkins
-
Publication number: 20190162218Abstract: A blind fastener device for fastening at least two workpieces, including a sleeve, an expander having a tensioning section, a locking section, and an expansion section, and a nut. A portion of the expander passes through the sleeve to cooperate with the nut so that relative rotation of the expander and nut draws the expander's distal end toward the sleeve's proximal end thereby drawing a portion of the expansion section of the expander into a structural region located on the sleeve and expanding at least a portion of the sleeve's structural region, and drawing a portion of the locking section past the sleeve's distal end toward the sleeve's proximal end and deforming at least a portion of the sleeve's distal end to a locked state.Type: ApplicationFiled: January 25, 2019Publication date: May 30, 2019Inventors: George M. Anasis, David W. Hawkins
-
Patent number: 10190617Abstract: A blind fastener device for fastening at least two workpieces, including a sleeve, an expander having a tensioning section, a locking section, and an expansion section, and a nut. A portion of the expander passes through the sleeve to cooperate with the nut so that relative rotation of the expander and nut draws the expander's distal end toward the sleeve's proximal end thereby drawing a portion of the expansion section of the expander into a structural region located on the sleeve and expanding at least a portion of the sleeve's structural region, and drawing a portion of the locking section past the sleeve's distal end toward the sleeve's proximal end and deforming at least a portion of the sleeve's distal end to a locked state. The sleeve may be configured as a multi-section sleeve having a sleeve retainer to locate the sections in a predetermined relationship.Type: GrantFiled: January 17, 2017Date of Patent: January 29, 2019Assignee: PRECISION TOWER PRODUCTSInventors: George M. Anasis, David W. Hawkins
-
Publication number: 20170167521Abstract: A blind fastener device for fastening at least two workpieces, including a sleeve, an expander having a tensioning section, a locking section, and an expansion section, and a nut. A portion of the expander passes through the sleeve to cooperate with the nut so that relative rotation of the expander and nut draws the expander's distal end toward the sleeve's proximal end thereby drawing a portion of the expansion section of the expander into a structural region located on the sleeve and expanding at least a portion of the sleeve's structural region, and drawing a portion of the locking section past the sleeve's distal end toward the sleeve's proximal end and deforming at least a portion of the sleeve's distal end to a locked state. The sleeve may be configured as a multi-section sleeve having a sleeve retainer to locate the sections in a predetermined relationship.Type: ApplicationFiled: January 17, 2017Publication date: June 15, 2017Inventors: George M. Anasis, David W. Hawkins
-
Patent number: 9581185Abstract: A blind fastener device for fastening at least two workpieces, including a sleeve, an expander having a tensioning section, a locking section, and an expansion section, and a nut. A portion of the expander passes through the sleeve to cooperate with the nut so that relative rotation of the expander and nut draws the expander's distal end toward the sleeve's proximal end thereby drawing a portion of the expansion section of the expander into a structural region located on the sleeve and expanding at least a portion of the sleeve's structural region, and drawing a portion of the locking section past the sleeve's distal end toward the sleeve's proximal end and deforming at least a portion of the sleeve's distal end to a locked state. The sleeve may be configured as a multi-section sleeve having a sleeve retainer to locate the sections in a predetermined relationship.Type: GrantFiled: February 13, 2015Date of Patent: February 28, 2017Assignee: PRECISION TOWER PRODUCTS, LLCInventors: George M. Anasis, David W. Hawkins
-
Patent number: 9562558Abstract: A blind fastener device for fastening workpieces, including a sleeve, an expander having a locking section and an expansion section, and a separate and distinct tensioning section configured to mechanically cooperate with the expander. One end of the tensioning section is configured as a tensioning section gripping region, which may be formed as the head of a bolt. A portion of the tensioning section passes through the sleeve to cooperate with the expander so that relative rotation of the tensioning section and the expander draws the expander distal end toward the sleeve proximal end and ultimately deforming a portion of the sleeve distal end to a locked state. The sleeve may be configured as a multi-section sleeve having a sleeve retainer to locate the sections in a predetermined relationship.Type: GrantFiled: August 4, 2015Date of Patent: February 7, 2017Assignee: PRECISION TOWER PRODUCTS, LLCInventors: George M. Anasis, David W. Hawkins
-
Publication number: 20160053794Abstract: A blind fastener device for fastening workpieces, including a sleeve, an expander having a locking section and an expansion section, and a separate and distinct tensioning section configured to mechanically cooperate with the expander. One end of the tensioning section is configured as a tensioning section gripping region, which may be formed as the head of a bolt. A portion of the tensioning section passes through the sleeve to cooperate with the expander so that relative rotation of the tensioning section and the expander draws the expander distal end toward the sleeve proximal end and ultimately deforming a portion of the sleeve distal end to a locked state. The sleeve may be configured as a multi-section sleeve having a sleeve retainer to locate the sections in a predetermined relationship.Type: ApplicationFiled: August 4, 2015Publication date: February 25, 2016Inventors: George M. Anasis, David W. Hawkins
-
Publication number: 20160053799Abstract: A blind fastener device for fastening at least two workpieces, including a sleeve, an expander having a tensioning section, a locking section, and an expansion section, and a nut. A portion of the expander passes through the sleeve to cooperate with the nut so that relative rotation of the expander and nut draws the expander's distal end toward the sleeve's proximal end thereby drawing a portion of the expansion section of the expander into a structural region located on the sleeve and expanding at least a portion of the sleeve's structural region, and drawing a portion of the locking section past the sleeve's distal end toward the sleeve's proximal end and deforming at least a portion of the sleeve's distal end to a locked state. The sleeve may be configured as a multi-section sleeve having a sleeve retainer to locate the sections in a predetermined relationship.Type: ApplicationFiled: February 13, 2015Publication date: February 25, 2016Inventors: George M. Anasis, David W. Hawkins
-
Publication number: 20040134161Abstract: A system and method of strengthening members of a tower comprises providing a tower including at least one tower member, and at least one reinforcing member. A structural adhesive is applied to the tower members and the reinforcing members. The reinforcing members are placed against corresponding tower members. The structural adhesive is cured to thereby permanently attach the reinforcing members to the tower members. The reinforcing members are secured to the corresponding tower members preferably by bolts while the structural adhesive is curing.Type: ApplicationFiled: October 15, 2003Publication date: July 15, 2004Inventors: James D. Lockwood, David W. Hawkins
-
Patent number: 6395906Abstract: The invention relates to novel arylpyrazoles of the formula (I): wherein R1, R3, R7, R14, R15, R16, and R17 are as defined in the description, and to their use as pesticides.Type: GrantFiled: September 20, 2000Date of Patent: May 28, 2002Assignee: Rhone-Poulenc Inc.Inventors: Jamin Huang, Patrick Doyle Lowder, Nicholas Charles Ray, David W. Hawkins
-
Patent number: 6180798Abstract: The invention relates to novel arylpyrazoles of the formula (I): wherein R1, R3, R7, R14, R15, R16 and R17 are as defined in the description, and to their use as pesticides.Type: GrantFiled: February 7, 2000Date of Patent: January 30, 2001Assignee: Rhone-Poulenc Inc.Inventors: Jamin Huang, Patrick Doyle Lowder, Nicholas Charles Ray, David W. Hawkins
-
Patent number: 6124339Abstract: The invention relates to novel arylpyrazoles of the formula (I): ##STR1## wherein R.sub.1, R.sub.3, R.sub.7, R.sub.14, R.sub.15, R.sub.16, and R.sub.17 are as defined in the description, and to their use as pesticides.Type: GrantFiled: September 2, 1999Date of Patent: September 26, 2000Assignee: Rhone-Poulenc Inc.Inventors: Jamin Huang, Patrick Doyle Lowder, Nicholas Charles Ray, David W. Hawkins
-
Patent number: 5994386Abstract: The invention relates to novel arylpyrazoles of the formula (I): ##STR1## wherein R.sub.1, R.sub.3, R.sub.7, R.sub.14, R.sub.15, R.sub.16, and R.sub.17 are as defined in the description, and to their use as pesticides.Type: GrantFiled: March 8, 1999Date of Patent: November 30, 1999Assignee: Rhone-Poulenc Inc.Inventors: Jamin Huang, Patrick Doyle Lowder, Nicholas Charles Ray, David W. Hawkins
-
Patent number: 5922885Abstract: The invention relates to novel arylpyrazoles of the formula (I): ##STR1## wherein R.sub.1, R.sub.3, R.sub.7, R.sub.14, R.sub.15, R.sub.16, and R.sub.17 are as defined in the description, and to their use as pesticides.Type: GrantFiled: July 16, 1998Date of Patent: July 13, 1999Assignee: Rhone-Poulenc Inc.Inventors: Jamin Huang, Patrick Doyle Lowder, Nicholas Charles Ray, David W. Hawkins
-
Patent number: 5817688Abstract: The invention relates to novel arylpyrazoles of the formula (I): ##STR1## wherein R.sub.1, R.sub.3, R.sub.7, R.sub.14, R.sub.15, R.sub.16, and R.sub.17 are as defined in the description, and to their use as pesticides.Type: GrantFiled: December 11, 1996Date of Patent: October 6, 1998Assignee: Rhone-Poulenc Inc.Inventors: Jamin Huang, Patrick Doyle Lowder, Nicholas Charles Ray, David W. Hawkins
-
Patent number: 5608077Abstract: N-Phenylpyrazole derivatives of the formula: ##STR1## wherein R.sup.1 represents cyano, nitro, halogen, acetyl or formyl;R.sup.2 represents R.sup.5 SO.sub.2, R.sup.5 SO or R.sup.5 S in which R.sup.5 is optionally halogen substituted alkyl, alkenyl or alkynyl;R.sup.3 represents a hydrogen atom or a group NR.sup.6 R.sup.7 wherein R.sup.6 and R.sup.7 each represent hydrogen, alkyl, alkenylalkyl, alkynylalkyl, formyl, optionally halogen substituted alkanoyl, optionally halogen substituted alkoxycarbonyl, or alkoxymethyleneamino, halogen, or R.sup.6 and R.sup.7 together form a cyclic imide and R.sup.4 represents a substituted phenyl group possess arthropodicidal, plant nematocidal, anthelmintic and anti-protozoal properties; their preparation, compositions containing them and their use are described.Type: GrantFiled: May 30, 1995Date of Patent: March 4, 1997Assignee: Rhone-Poulenc Agriculture Ltd.Inventors: Leslie R. Hatton, Ian G. Buntain, David W. Hawkins, Edgar W. Parnell, Christopher J. Pearson, David A. Roberts
-
Patent number: 5547974Abstract: N-Phenylpyrazole derivatives of the formula: ##STR1## wherein R.sup.1 represents cyano, nitro, halogen, acetyl or formyl; R.sup.2 represents R.sup.5 SO.sub.2, R.sup.5 SO or R.sup.5 S in which R.sup.5 is optionally halogen substituted alkyl, alkenyl or alkynyl;R.sup.3 represents a hydrogen atom or a group NR.sup.6 R.sup.7 wherein R.sup.6 and R.sup.7 each represent hydrogen, alkyl, alkenylalkyl, alkynylalkyl, formyl, optionally halogen substituted alkanoyl, optionally halogen substituted alkoxycarbonyl, or alkoxymethyleneamino, halogen, or R.sup.6 and R.sup.7 together form a cyclic imide and R.sup.4 represents a substituted phenyl group possess arthropodicidal, plant nematocidal, anthelmintic and anti-protozoal properties; their preparation, compositions containing them and their use are described.Type: GrantFiled: May 5, 1993Date of Patent: August 20, 1996Assignee: Rhone-Poulenc Agriculture Ltd.Inventors: Leslie R. Hatton, Ian G. Buntain, David W. Hawkins, Edgar W. Parnell, Christopher J. Pearson, David A. Roberts