Patents by Inventor Igor Stankovic

Igor Stankovic 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: 11162308
    Abstract: A tubular handling assembly includes a mandrel; a plurality of gripping elements for gripping a tubular, the plurality of gripping elements coupled to and rotatable with the mandrel; one or more accumulators; a first actuator configured to supply fluid to the one or more accumulators; and a second actuator configured to receive fluid from at least one of the one or more accumulators and to actuate the plurality of gripping elements.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: November 2, 2021
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Igor Stankovic, Martin Helms, Michael Schindel, Thomas Kotschy, Christian Kiess
  • Patent number: 10830008
    Abstract: An elevator for use in handling a tubular includes a first body part coupled to a second body part; and at least two slips coupled to each of the first and second body parts, wherein one or more of the slips includes an engagement member for coupling with a mating member of the first body part or the second body part, wherein at least 25% of the engagement member is coupled with the mating member when the slip is in an open position. In another embodiment, a swivel includes an upper housing rotatably coupled to a lower housing; and a rotary union having a rotating body attached to the lower housing and a non-rotating body attached to the upper housing, wherein the swivel is configured to transfer load from the lower housing to the upper housing.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: November 10, 2020
    Assignee: Weatherford Technology Holdings, LLC
    Inventor: Igor Stankovic
  • Publication number: 20200181991
    Abstract: A tubular handling assembly includes a mandrel; a plurality of gripping elements for gripping a tubular, the plurality of gripping elements coupled to and rotatable with the mandrel; one or more accumulators; a first actuator configured to supply fluid to the one or more accumulators; and a second actuator configured to receive fluid from at least one of the one or more accumulators and to actuate the plurality of gripping elements.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 11, 2020
    Inventors: Igor STANKOVIC, Martin HELMS, Michael SCHINDEL, Thomas KOTSCHY, Christian KIESS
  • Patent number: 10487597
    Abstract: An elevator for use in handling a tubular includes a first body part coupled to a second body part and at least two slips coupled to each of the first and second body parts. One or more of the slips includes an engagement member for coupling with a mating member of the first body part or the second body part, wherein at least 25% of the engagement member is coupled with the mating member when the slip is in an open position.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: November 26, 2019
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventor: Igor Stankovic
  • Publication number: 20190338604
    Abstract: An elevator for use in handling a tubular includes a first body part coupled to a second body part; and at least two slips coupled to each of the first and second body parts, wherein one or more of the slips includes an engagement member for coupling with a mating member of the first body part or the second body part, wherein at least 25% of the engagement member is coupled with the mating member when the slip is in an open position. In another embodiment, a swivel includes an upper housing rotatably coupled to a lower housing; and a rotary union having a rotating body attached to the lower housing and a non-rotating body attached to the upper housing, wherein the swivel is configured to transfer load from the lower housing to the upper housing.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Inventor: Igor STANKOVIC
  • Publication number: 20150159444
    Abstract: An elevator for use in handling a tubular includes a first body part coupled to a second body part; and at least two slips coupled to each of the first and second body parts, wherein one or more of the slips includes an engagement member for coupling with a mating member of the first body part or the second body part, wherein at least 25% of the engagement member is coupled with the mating member when the slip is in an open position. In another embodiment, a swivel includes an upper housing rotatably coupled to a lower housing; and a rotary union having a rotating body attached to the lower housing and a non-rotating body attached to the upper housing, wherein the swivel is configured to transfer load from the lower housing to the upper housing.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 11, 2015
    Inventor: Igor STANKOVIC
  • Publication number: 20140262526
    Abstract: In one embodiment, a tubular handling assembly for use with a top drive includes a mandrel coupled to the top drive; a gripping assembly for gripping and releasing a tubular, the gripping assembly coupled to and rotating with the mandrel; and an actuation assembly for actuating the gripping assembly, wherein the gripping assembly is rotatable relative to the actuation assembly.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Weatherford/Lamb, Inc.
    Inventors: Igor STANKOVIC, Martin LIESS, Karsten HEIDECKE
  • Publication number: 20100066216
    Abstract: To provide a quantum motor capable of reliably carrying out rotation. A quantum motor includes a rotor containing a functional material of which quantum characteristic is externally controllable, an N pole permanent magnet and an S pole permanent magnet applying magnetic field to the rotor, and a light source varying the quantum characteristic of the rotor. The light source varies the quantum characteristic of the rotor, so that rotation force is generated in the rotor and the rotor rotates.
    Type: Application
    Filed: January 11, 2007
    Publication date: March 18, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hidetoshi Kusumi, Tomasz Blachowicz, Hiromichi Yanagihara, Marleen De Weser, Jonas Ambeck-Madsen, Gabriel Othmezouri, Igor Stankovic, Ryuji Funayama, Katsuhiro Sakai