Propeller Patents (Class D12/214)
  • Patent number: 11448232
    Abstract: A propeller blade includes a body configured to extend radially from the hub of a propeller. The body can include a front surface, a back surface, a leading edge, and a trailing edge. The top of the body can form a tippet that generally transitions the front and back surfaces from extending in a generally radial direction to a generally axial direction. The tippet can reduce radial flow and force losses, redirect the radial flow in an axial direction, reduce the exit flow area of the propeller, and increase the inlet flow area of the propeller. The front surface of the blade can have a planar configuration that prevents or reduces the creation of low or negative pressure across the front surface of the blade and associated cavitation.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: September 20, 2022
    Assignee: SP TECH
    Inventors: Stephen R. Topaz, Peter A. Topaz, Warren L. Powers
  • Patent number: D790430
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: June 27, 2017
    Assignee: GoPro, Inc.
    Inventors: Ihab A. Ali, Reza Yazdani
  • Patent number: D792318
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: July 18, 2017
    Assignee: Guangzhou Ehang Intelligent Technology Co., Ltd.
    Inventors: Hao Du, Zhiyi Li, Chunming Ma
  • Patent number: D797638
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: September 19, 2017
    Assignee: XIANGSHAN GEMFAN HOBBY CO., LTD.
    Inventor: Hengzhi Xiao
  • Patent number: D797639
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: September 19, 2017
    Assignee: XIANGSHAN GEMFAN HOBBY CO., LTD.
    Inventor: Hengzhi Xiao
  • Patent number: D798219
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: September 26, 2017
    Assignee: XIANGSHAN GEMFAN HOBBY CO., LTD.
    Inventor: Hengzhi Xiao
  • Patent number: D802513
    Type: Grant
    Filed: November 26, 2016
    Date of Patent: November 14, 2017
    Assignee: XIANGSHAN GEMFAN HOBBY CO., LTD.
    Inventor: Hengzhi Xiao
  • Patent number: D805017
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: December 12, 2017
    Assignee: SZ DJI Technology Co., Ltd.
    Inventors: Zhen Wang, Xifeng Zhao, Ping Wang
  • Patent number: D818414
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: May 22, 2018
    Inventors: Chris Bills, Donald E. Moriarty
  • Patent number: D820764
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: June 19, 2018
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Takayoshi Suzuki, Satoshi Ishikawa, Tsukasa Tanimoto
  • Patent number: D821953
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: July 3, 2018
    Assignee: SZ DJI Technology Co., Ltd.
    Inventors: Feng Liu, Tao Deng, Bin Jiang
  • Patent number: D826132
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: August 21, 2018
    Inventor: Eric Hanscom
  • Patent number: D828803
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: September 18, 2018
    Assignee: XIANGSHAN GEMFAN HOBBY CO., LTD.
    Inventor: Hengzhi Xiao
  • Patent number: D834491
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: November 27, 2018
    Assignee: GE Aviation Systems LLC
    Inventor: Gábor Zipszer
  • Patent number: D839815
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: February 5, 2019
    Assignee: AUTEL ROBOTICS CO., LTD.
    Inventors: Juntian Jiang, Yongshuai Wang
  • Patent number: D842211
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: March 5, 2019
    Assignee: AZURE POWER TECHNOLOGY CO., LTD.
    Inventor: Degui Xiao
  • Patent number: D846662
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: April 23, 2019
    Assignee: Innovation First, Inc.
    Inventors: David Anthony Norman, Robert H. Mimlitch, III, Raul Olivera, Douglas Michael Galletti, James Anthony Trzaskos, Gregory James Lavender, Adam Freeman
  • Patent number: D857601
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: August 27, 2019
    Inventor: Floyd Glen Hopkins, III
  • Patent number: D864837
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: October 29, 2019
    Assignee: NORTH AMERICAN AEROSPACE CORPORATION
    Inventor: Craig Catto
  • Patent number: D869368
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 10, 2019
    Assignee: CIXI LUOSAIFEI KAYAK CO., LTD
    Inventor: Zhengyun Li
  • Patent number: D870012
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: December 17, 2019
    Inventor: Floyd Glen Hopkins, III
  • Patent number: D885298
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 26, 2020
    Assignee: JAPAN AEROSPACE EXPLORATION AGENCY
    Inventor: Eiji Shima
  • Patent number: D891351
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: July 28, 2020
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Christopher E. Foskey, Brendan P. Lanigan
  • Patent number: D893393
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 18, 2020
    Inventor: Floyd Glen Hopkins, III
  • Patent number: D895522
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: September 8, 2020
    Assignee: Brunswick Corporation
    Inventor: Michael J. Boks
  • Patent number: D897264
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: September 29, 2020
    Assignee: XYLEM EUROPE GMBH
    Inventors: Tatjana Nechaeva, Per Porath
  • Patent number: D897265
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: September 29, 2020
    Assignee: XIANGSHAN GEMFAN HOBBY CO., LTD.
    Inventor: Hengzhi Xiao
  • Patent number: D899343
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: October 20, 2020
    Assignee: XIANGSHAN GEMFAN HOBBY CO., LTD.
    Inventor: Hengzhi Xiao
  • Patent number: D903573
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: December 1, 2020
    Assignee: JAPAN AEROSPACE EXPLORATION AGENCY
    Inventor: Eiji Shima
  • Patent number: D925430
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: July 20, 2021
    Inventor: Kwang Moo Lee
  • Patent number: D929929
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: September 7, 2021
    Inventor: Gary Alan Ledford
  • Patent number: D930547
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: September 14, 2021
    Assignee: NINGBO GEMFAN HOBBY CO., LTD.
    Inventor: Hengzhi Xiao
  • Patent number: D939421
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: December 28, 2021
    Assignee: Cixi Luosaifei Kayak Co., Ltd.
    Inventor: Zhengyun Li
  • Patent number: D939422
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: December 28, 2021
    Assignee: Cixi Luosaifei Kayak Co., Ltd.
    Inventor: Zhengyun Li
  • Patent number: D940044
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: January 4, 2022
    Assignee: AUTEL ROBOTICS CO., LTD.
    Inventor: Hailang Zhang
  • Patent number: D949085
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: April 19, 2022
    Assignee: Japan Aerospace Exploration Agency
    Inventor: Masashi Harada
  • Patent number: D959569
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: August 2, 2022
    Assignee: Innovation First, Inc.
    Inventors: David Anthony Norman, Robert H. Mimlitch, III, Raul Olivera, Douglas Michael Galletti, James Anthony Trzaskos, Gregory James Lavender, Adam Freeman
  • Patent number: D974267
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: January 3, 2023
    Assignee: Sharrow Engineering LLC
    Inventor: Gregory C. Sharrow
  • Patent number: D974268
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: January 3, 2023
    Assignee: Sharrow Engineering LLC
    Inventor: Gregory C. Sharrow
  • Patent number: D974269
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: January 3, 2023
    Assignee: Sharrow Engineering LLC
    Inventor: Gregory C. Sharrow
  • Patent number: D974270
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: January 3, 2023
    Assignee: Sharrow Engineering LLC
    Inventor: Gregory C. Sharrow
  • Patent number: D988967
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: June 13, 2023
    Assignee: Sharrow Engineering LLC
    Inventor: Gregory C. Sharrow
  • Patent number: D991128
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: July 4, 2023
    Inventor: Adam James
  • Patent number: D996287
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: August 22, 2023
    Inventors: Thomas Nussbaumer, Patrick Hinni, Philipp Campos
  • Patent number: D1005208
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: November 21, 2023
    Assignee: NORTH AMERICAN AEROSPACE CORPORATION
    Inventor: Craig Catto
  • Patent number: D1011257
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: January 16, 2024
    Inventor: Gregory C. Sharrow
  • Patent number: D1013605
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: February 6, 2024
    Inventor: Gregory Sharrow
  • Patent number: D1014390
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: February 13, 2024
    Assignee: Sharrow Engineering LLC
    Inventor: Gregory C. Sharrow
  • Patent number: D1014391
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: February 13, 2024
    Assignee: Sharrow Engineering LLC
    Inventor: Gregory C. Sharrow
  • Patent number: D1015251
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: February 20, 2024
    Assignee: Sharrow Engineering LLC
    Inventor: Gregory C. Sharrow