Ladder Patents (Class D25/64)
Step stool type (Class D25/65)
  • Variable height support structure
    Patent number: 12193757
    Abstract: A variable height support structure is provided. The variable height support structure can include a first support member, a second support member, a first expansion link, a second expansion link, and a third expansion link. The variable height support structure can selectively transition from a compressed configuration to an expanded configuration along a longitudinal central axis that extends between the first support member and the second support member.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: January 14, 2025
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventor: Timothy D. Boucher
  • Collapsible ladder
    Patent number: D841190
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: February 19, 2019
    Inventor: Larry Mickens
  • Vehicle ladder
    Patent number: D845853
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: April 16, 2019
    Inventor: Cec Annett
  • Unitary tree ladder
    Patent number: D872308
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: January 7, 2020
    Inventor: Jon Bradford Hand
  • Folding ladder
    Patent number: D872876
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: January 14, 2020
    Assignee: NEW-TEC INTEGRATION (XIAMEN) CO., LTD.
    Inventor: Luhao Leng
  • Telescopic ladder
    Patent number: D872880
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: January 14, 2020
    Assignee: NINGBO XINGFU TOOLS CO., LTD.
    Inventor: Wanxing Wang
  • Vehicle ladder
    Patent number: D882119
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: April 21, 2020
    Assignee: Intelligent Designs 2000 Corp.
    Inventor: Paul Badillo
  • Engine maintenance ladder
    Patent number: D884923
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: May 19, 2020
    Assignee: LOCK N CLIMB, LLC
    Inventor: Jeffrey Alan Green
  • Ladder
    Patent number: D889689
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: July 7, 2020
    Assignee: WING ENTERPRISES, INC.
    Inventors: Brian B. Russell, N. Ryan Moss, B. Scott Maxfield, Steve L. Puertas
  • Ladder
    Patent number: D895152
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: September 1, 2020
    Assignee: WING ENTERPRISES, INCORPORATED
    Inventors: N. Ryan Moss, Benjamin L. Cook, Sean R. Peterson
  • Quick access ladder
    Patent number: D896991
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: September 22, 2020
    Inventors: Floyd E. Clark, Jr., Jamie LaCombe
  • Engine maintenance ladder
    Patent number: D898944
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: October 13, 2020
    Assignee: LOCK N CLIMB, LLC
    Inventor: Jeffrey Alan Green
  • Ladder
    Patent number: D899628
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: October 20, 2020
    Assignee: LOUISVILLE LADDER INC.
    Inventor: Francisco Javier Moreno Moncada
  • Boat step apparatus
    Patent number: D903575
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: December 1, 2020
    Inventor: Graham Sidney Hawkes
  • Adjustable ladder
    Patent number: D904641
    Type: Grant
    Filed: April 21, 2018
    Date of Patent: December 8, 2020
    Inventor: Ding He
  • Vehicle ladder
    Patent number: D906546
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: December 29, 2020
    Assignee: INTELLIGENT DESIGNS 2000 CORP.
    Inventor: Paul Badillo
  • Multipurpose ladder
    Patent number: D908924
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: January 26, 2021
    Assignee: Werner Co.
    Inventors: Michael T. Melton, Thomas Murray, Thomas J. Dooley, Daniel Massam, Ryan W. Duever
  • Ladder
    Patent number: D908925
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: January 26, 2021
    Inventor: Il Jung Kang
  • Tree ladder
    Patent number: D918425
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 4, 2021
    Inventor: Kary Zarem
  • Ladder
    Patent number: D920541
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: May 25, 2021
    Assignee: LITTLE GIANT LADDER SYSTEMS, LLC
    Inventors: Travis Mittanck, Brian B. Russell
  • Ladder
    Patent number: D921224
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: June 1, 2021
    Assignee: LITTLE GIANT LADDER SYSTEMS, LLC
    Inventors: Travis Mittanck, Brian B. Russell
  • Ladder
    Patent number: D923820
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: June 29, 2021
    Inventor: Laurent Nogues
  • Ladder for a vehicle
    Patent number: D934768
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 2, 2021
    Assignee: JAGUAR LAND ROVER LIMITED
    Inventor: Mathew Rogers
  • Ladder
    Patent number: D935053
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: November 2, 2021
    Assignee: Werner Co.
    Inventors: Tek Lentine, Joseph Dangrow, Daniel C. Mora, Robert D. Beggs, Adam C. Fields, Brent Sedlacek, Thomas W. Parker
  • Ladder
    Patent number: D935054
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: November 2, 2021
    Assignee: LITTLE GIANT LADDER SYSTEMS, LLC
    Inventors: B. Scott Maxfield, N. Ryan Moss, Brian B. Russell
  • Flip-up ladder
    Patent number: D943772
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: February 15, 2022
    Assignee: LITTLE GIANT LADDER SYSTEMS, LLC
    Inventors: B. Scott Maxfield, N. Ryan Moss, Brian B. Russell
  • Ladder
    Patent number: D949438
    Type: Grant
    Filed: January 19, 2020
    Date of Patent: April 19, 2022
    Assignee: Aukey Technology Co., Ltd
    Inventors: Xiaowei Yin, Bingkun Duan, Huiyue Ze
  • Retractable telescopic ladder
    Patent number: D962480
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: August 30, 2022
    Assignee: Lampe Holding B.V.
    Inventor: Caspar Bernard Lampe
  • Ladder
    Patent number: D966556
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: October 11, 2022
    Inventor: Jeremy Barker
  • Ladder
    Patent number: D966557
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: October 11, 2022
    Assignee: LITTLE GIANT LADDER SYSTEMS, LLC
    Inventors: B. Scott Maxfield, N. Ryan Moss, Brian B. Russell
  • Flip-up ladder
    Patent number: D969347
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: November 8, 2022
    Assignee: LITTLE GIANT LADDER SYSTEMS, LLC
    Inventors: B. Scott Maxfield, N. Ryan Moss, Brian B. Russell
  • Ladder
    Patent number: D970045
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: November 15, 2022
    Assignee: LITTLE GIANT LADDER SYSTEMS, LLC
    Inventors: Travis Mittanck, Brian B. Russell
  • Ladder
    Patent number: D970046
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: November 15, 2022
    Assignee: LITTLE GIANT LADDER SYSTEMS, LLC
    Inventors: Travis Mittanck, Brian B. Russell
  • Ladder
    Patent number: D973231
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: December 20, 2022
    Assignee: LITTLE GIANT LADDER SYSTEMS, LLC
    Inventors: B. Scott Maxfield, N. Ryan Moss, Brian B. Russell
  • Ladder
    Patent number: D975317
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: January 10, 2023
    Assignee: Yongkang EMJ Industrial & Trade Co., Ltd
    Inventor: Huaxing Hu
  • Slider and ladder assembly
    Patent number: D986441
    Type: Grant
    Filed: February 17, 2023
    Date of Patent: May 16, 2023
    Inventor: Lanhui Hu
  • Slider and ladder assembly
    Patent number: D986442
    Type: Grant
    Filed: February 23, 2023
    Date of Patent: May 16, 2023
    Inventor: Lanhui Hu
  • Ladder assembly
    Patent number: D987118
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: May 23, 2023
    Assignee: KROEGER MARINE CONSTRUCTION, INC.
    Inventors: Benjamin Kroeger, Dave Kroeger, Jackson Weaver
  • Ladder
    Patent number: D999404
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: September 19, 2023
    Assignee: Little Giant Ladder Systems, LLC
    Inventors: B. Scott Maxfield, N. Ryan Moss, Brian B. Russell
  • Capsule bed
    Patent number: D1002252
    Type: Grant
    Filed: September 29, 2021
    Date of Patent: October 24, 2023
    Assignee: KOTOBUKI SEATING CO., LTD.
    Inventors: Shigenori Asakura, Kosuke Wakao, Gaku Negishi
  • Ladder
    Patent number: D1005526
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: November 21, 2023
    Inventor: Fuling Ma
  • Tree climbing tool
    Patent number: D1007261
    Type: Grant
    Filed: July 25, 2023
    Date of Patent: December 12, 2023
    Inventor: Ming Xue
  • Ladder platform with stairs
    Patent number: D1013899
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: February 6, 2024
    Assignee: NSAFE Engineering, Inc.
    Inventors: Chester J. Budziak, Adam P. Budziak, Gregory C. Budziak
  • Collapsible ladder
    Patent number: D1026251
    Type: Grant
    Filed: December 6, 2023
    Date of Patent: May 7, 2024
    Assignee: JINHUA SUNHE HOUSEHOLD PRODUCTS CO., LTD
    Inventor: Zhenzi Hu
  • Ladder
    Patent number: D1031090
    Type: Grant
    Filed: November 15, 2023
    Date of Patent: June 11, 2024
    Assignee: Jiaxing Explorer Metal Products Co., Ltd.
    Inventor: Tingli Cui
  • Escape ladder
    Patent number: D1050493
    Type: Grant
    Filed: August 1, 2024
    Date of Patent: November 5, 2024
    Inventor: Yahui Du
  • Climbing stick
    Patent number: D1053550
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: December 10, 2024
    Assignee: Fourth Arrow, LLC
    Inventors: Robert M. Wynalda, Jr., David Wynalda
  • Ladder for a boat
    Patent number: D1054592
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: December 17, 2024
    Assignee: THE ULTIMATE BOAT COMPANY LIMITED
    Inventors: Colin McAndrew, Shane Mugan
  • Folding ladder
    Patent number: D1056249
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: December 31, 2024
    Assignee: Tianjin Jinmao Houseware Products Co., Ltd
    Inventors: Jie Li, Shengjiang Wang, Fengming Li
  • Safety ladder
    Patent number: D1056250
    Type: Grant
    Filed: February 13, 2024
    Date of Patent: December 31, 2024
    Assignee: COS SHORE INC.
    Inventor: Tony Cosentino