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For the Inventor, By the Inventor

Aalborg, Denmark

Liftra IP Aps


USPTO Granted Patents = 19



Trademarks = 2

Forward Citations = 25

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2 inventors (with patents filed for the assignee):

goldMedal Per Eske Fenger (19 out of 25 patents)

silverMedal Alexander Becsei Christiansen (1 out of 1 patent)


19 patents:

1. 12473179 - Base for supporting a portable crane and a method for removing a main bearing of a wind turbine (2025-11-18),
2. 12434946 - Rotor blade hoisting system and method of installation and/or deinstallation of a rotor blade (2025-10-07),
3. 12428268 - Counterweight tool (2025-09-30),
4. 12215000 - Method and yoke for lifting a wind turbine component (2025-02-04),
5. 12116249 - Self-hoisting crane system and method of hoisting a self-hoisting crane (2024-10-15),
6. 12116248 - Crane system for hoisting of wind turbine components (2024-10-15),
7. 12104578 - Main shaft fixture (2024-10-01),
8. 12092073 - Wind turbine tower with crane connection elements and a crane with tower flange connection elements (2024-09-17),
9. 11994102 - Rotor blade clamping tool (2024-05-28),
10. 11932520 - Method of mounting a self-hoisting crane on a wind turbine and self-hoisting crane (2024-03-19),
11. 11732695 - Rotor blade clamping tool (2023-08-22),
12. 11092139 - Rotor blade replacement system (2021-08-17),
13. 10753339 - Adjustable retention fixture for wind turbine members (2020-08-25),
14. 10703610 - Lifting bracket (2020-07-07),
15. 10611608 - Method and device for automatic control of the position of a burden suspended in a main wire on a crane (2020-04-07),
Liftra IP Aps is a leading provider of innovative solutions for the wind energy industry. With a focus on developing advanced technology for lifting and transportation of wind turbine components, Liftra has established itself as a key player in the sector. The company's products are designed to improve safety, efficiency, and cost-effectiveness for wind energy projects across the globe.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

19 Patents

#3 in Aalborg

#149 in Denmark

#31,678 in the World

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Aalborg, Denmark

Liftra IP Aps

Forward Citations = 25

2 inventors:

goldMedal Per Eske Fenger (19 out of 25 patents)

silverMedal Alexander Becsei Christiansen (1 out of 1 patent)

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