Patents by Inventor Gary W. Knox

Gary W. Knox 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: 11939434
    Abstract: Copolymers comprising recurring units of a phenyl glycidyl ether and alkylene oxides are disclosed. Some of the copolymers comprise a di- or polyfunctional nucleophilic initiator and recurring units of the phenyl glycidyl ether and an alkylene oxide. The di- or polyfunctional nucleophilic initiator is an alcohol, phenol, amine, thiol, thiophenol, sulfinic acid, or deprotonated species thereof. Other copolymers comprise a monofunctional nucleophilic initiator selected from thiols, thiophenols, aralkylated phenols, sulfinic acids, secondary amines, C10-C20 terpene alcohols, and deprotonated species thereof. Pigments dispersions comprising the copolymers are also disclosed. The copolymers meet the growing needs of the industry with their ease of manufacture, diverse structures, and desirable performance attributes for dispersing a wide range of organic and inorganic pigments. Agricultural applications for the copolymers are also disclosed.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: March 26, 2024
    Assignee: STEPAN COMPANY
    Inventors: Timothy A. Boebel, Xue Min Dong, E. Carolina Rojas, Renee Luka, Gary Luebke, Paul W. Knox
  • Patent number: 6415549
    Abstract: A container for growing plants comprising a main body with an open top and perimeter rim, and a funnel-like water collection means having an inner mating perimeter adapted to adjoin the perimeter rim, an outer mating perimeter of greater size than the inner mating perimeter and a sloping surface connecting the outer mating perimeter to the inner mating perimeter, such that overhead water is captured and directed into the open top. The water collection means may be detachable. The water collection means has mating edges adapted to continuously and contiguously abut mating edges of like containers to form a solid water capture surface in all directions when multiple containers are properly positioned.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: July 9, 2002
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Richard C. Beeson, Jr., Dorota Z. Haman, Gary W. Knox, Allen G. Smajstrla, Thomas H. Yeager
  • Patent number: 4613140
    Abstract: A self-aligning and self-lubricating stuffing box for oil well polish rods, pump rods and the like, and comprising a housing disposed around the outer periphery of the rod and having an internal cooling chamber surrounding the outer periphery of the rod for retaining a fluid reservoir in engagement with the rod for an efficient lubrication thereof, at least one valved internal passageway provided in the housing for automatically directing the fluid to and/or from the cooling chamber as required during the operation of the polish rod during a well fluid production process, at least two longitudinally spaced bushing members disposed in the housing and in engagement with the outer periphery of the rod for assuring an efficient axial alignment between the housing and the rod during the reciprocation of the rod, and a swivel connection for overcoming any misalignment between the pump jack and the pumping "T" during the well production operation.
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: September 23, 1986
    Inventor: Gary W. Knox
  • Patent number: 4579350
    Abstract: A stuffing box for the reciprocal polish rod of a producing oil and/or gas well bore, the rotatable rod of a pump, or the like and comprising a housing disposed around the outer periphery of the rod and concentrically arranged with respect thereto to provide a cooling chamber around the outer periphery of the rod, upper and lower bushing members disposed in the housing and around the outer periphery of the rod for assuring an efficient axial alignment between the rod and the housing during reciprocation of the rod, annular sealing members interposed between the bushings and the rod for precluding leakage of fluid therebetween with the use of the usual packing assemblies, a charging seal provided at the lowermost bushing and responsive to pressure differentials acting thereacross for admitting fluid into the cooling chamber while precluding movement of fluid from the cooling chamber around the charging seal, a valved internal passageway provided in the stuffing box providing communication between the cooling c
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: April 1, 1986
    Inventor: Gary W. Knox