Patents by Inventor Keith Powell

Keith Powell 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).

  • Fixed broadhead
    Patent number: 10205936
    Abstract: Fixed broadheads may be provided having main blades connected to a tip and secured within a slot or chamber in the body of the broadhead. Secondary blades may interlock with the main blades inside of a ferrule, thereby forming a fixed broadhead with an advanced and strong retention system. The main blades may be pinned to the tip of the broadhead through blade pins and the secondary blades may interlock with the main blades, thereby improving the strength and precision of the fixed broadhead in its movement toward a target.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: February 12, 2019
    Inventor: Keith Powell
  • Rear-deploying mechanical broadhead
    Patent number: 10057565
    Abstract: Rear-deploying mechanical broadheads may be provided having stationary blades that open only through movement of a drive pin/key secured within a slot or chamber in the body of the broadhead. The drive pin/key may act as bleeder blades, thereby forming a mechanical broadhead with bleeder blades. The stationary blades may be pinned to the tip of the broadhead through blade pins, thereby keeping the blades stationary during flight toward a target and lessening the likelihood that the broadhead may be errant in its movement toward a target.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: August 21, 2018
    Inventor: Keith Powell
  • Fixed Broadhead
    Publication number: 20180109779
    Abstract: Fixed broadheads may be provided having main blades connected to a tip and secured within a slot or chamber in the body of the broadhead. Secondary blades may interlock with the main blades inside of a ferrule, thereby forming a fixed broadhead with an advanced and strong retention system. The main blades may be pinned to the tip of the broadhead through blade pins and the secondary blades may interlock with the main blades, thereby improving the strength and precision of the fixed broadhead in its movement toward a target.
    Type: Application
    Filed: December 14, 2017
    Publication date: April 19, 2018
    Inventor: Keith Powell
  • REAR-DEPLOYING MECHANICAL BROADHEAD
    Publication number: 20170257625
    Abstract: Rear-deploying mechanical broadheads may be provided having stationary blades that open only through movement of a drive pin/key secured within a slot or chamber in the body of the broadhead. The drive pin/key may act as bleeder blades, thereby forming a mechanical broadhead with bleeder blades. The stationary blades may be pinned to the tip of the broadhead through blade pins, thereby keeping the blades stationary during flight toward a target and lessening the likelihood that the broadhead may be errant in its movement toward a target.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 7, 2017
    Inventor: Keith Powell
  • Rear-deploying mechanical broadhead
    Patent number: 9658041
    Abstract: Rear-deploying mechanical broadheads may be provided having stationary blades that open only through movement of a drive pin/key secured within a slot or chamber in the body of the broadhead. The drive pin/key may act as bleeder blades, thereby forming a mechanical broadhead with bleeder blades. The stationary blades may be pinned to the tip of the broadhead through blade pins, thereby keeping the blades stationary during flight toward a target and lessening the likelihood that the broadhead may be errant in its movement toward a target.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: May 23, 2017
    Inventor: Keith Powell
  • REAR-DEPLOYING MECHANICAL BROADHEAD
    Publication number: 20160223306
    Abstract: Rear-deploying mechanical broadheads may be provided having stationary blades that open only through movement of a drive pin/key secured within a slot or chamber in the body of the broadhead. The drive pin/key may act as bleeder blades, thereby forming a mechanical broadhead with bleeder blades. The stationary blades may be pinned to the tip of the broadhead through blade pins, thereby keeping the blades stationary during flight toward a target and lessening the likelihood that the broadhead may be errant in its movement toward a target.
    Type: Application
    Filed: April 12, 2016
    Publication date: August 4, 2016
    Inventor: Keith Powell
  • Rear-deploying mechanical broadhead
    Patent number: 9335135
    Abstract: Rear-deploying mechanical broadheads may be provided having stationary blades that open only through movement of a drive pin/key secured within a slot or chamber in the body of the broadhead. The drive pin/key may act as bleeder blades, thereby forming a mechanical broadhead with bleeder blades. The stationary blades may be pinned to the tip of the broadhead through blade pins, thereby keeping the blades stationary during flight toward a target and lessening the likelihood that the broadhead may be errant in its movement toward a target.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: May 10, 2016
    Inventor: Keith Powell
  • Rear-Deploying Mechanical Broadhead
    Publication number: 20150105192
    Abstract: Rear-deploying mechanical broadheads may be provided having stationary blades that open only through movement of a drive pin/key secured within a slot or chamber in the body of the broadhead. The drive pin/key may act as bleeder blades, thereby forming a mechanical broadhead with bleeder blades. The stationary blades may be pinned to the tip of the broadhead through blade pins, thereby keeping the blades stationary during flight toward a target and lessening the likelihood that the broadhead may be errant in its movement toward a target.
    Type: Application
    Filed: November 14, 2014
    Publication date: April 16, 2015
    Inventor: Keith Powell
  • Rear-deploying mechanical broadhead
    Patent number: 8915808
    Abstract: Rear-deploying mechanical broadheads may be provided having stationary blades that open only through movement of a drive pin/key secured within a slot or chamber in the body of the broadhead. The drive pin/key may act as bleeder blades, thereby forming a mechanical broadhead with bleeder blades. The stationary blades may be pinned to the tip of the broadhead through blade pins, thereby keeping the blades stationary during flight toward a target and lessening the likelihood that the broadhead may be errant in its movement toward a target.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: December 23, 2014
    Inventor: Keith Powell
  • Rear-Deploying Mechanical Broadhead
    Publication number: 20140148285
    Abstract: Rear-deploying mechanical broadheads may be provided having stationary blades that open only through movement of a drive pin/key secured within a slot or chamber in the body of the broadhead. The drive pin/key may act as bleeder blades, thereby forming a mechanical broadhead with bleeder blades. The stationary blades may be pinned to the tip of the broadhead through blade pins, thereby keeping the blades stationary during flight toward a target and lessening the likelihood that the broadhead may be errant in its movement toward a target.
    Type: Application
    Filed: July 16, 2013
    Publication date: May 29, 2014
    Inventor: Keith Powell
  • NOVEL CONJUGATED PROTEINS AND PEPTIDES
    Publication number: 20100239517
    Abstract: The invention provides a novel process for conjugating a polymer, especially PEG, to a protein or peptide, which comprises reacting a polymeric conjugation reagent with a protein or peptide containing a polyhistidine tag under conditions such that conjugation occurs via said polyhistidine tag. The resulting conjugates are novel.
    Type: Application
    Filed: October 8, 2008
    Publication date: September 23, 2010
    Inventors: Stephen Brocchini, Penny Bryant, Yuehua Cong, Ji-Won Choi, Antony Godwin, Keith Powell
  • Clean room garment
    Patent number: 4868710
    Abstract: An article for removing static electricity includes a clean room garment to be worn by a person, the garment including a grid of electrical thread throughout for removing and collecting static electricity from the person; a metal snap at a front waist section of the garment; and an electrical coupling thread in electrical contact from cuff to cuff and electrically connected to the snap for collecting static electricity from the grid and for supplying the collected static electricity to the snap for electrical discharge thereat.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: September 19, 1989
    Assignee: Coats and Clark Inc.
    Inventor: Keith Powell