Niall James Caldwell

This inventor holds 45 USPTO granted patents and 13 published patent applications, plus 2 CIPO patents and 60 EPO patents, primarily in Hydraulic Systems. Top assignees: Artemis Intelligent Power Limited, Sauer Danfoss Aps, Danfoss Power Solutions Aps. Active years: 2006-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Niall James Caldwell. Retrieved from https://idiyas.com/inventor/niall-james-caldwell

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 45 (Patent Applications = 13)

% Patents Active = 66.7

CIPO Patents = 2

EPO Patents = 60 (Patent Applications = 45)

Average Co-Inventor Count = 2.7

ph-index = 7

Forward Citations = 266(Granted Patents)

Location History:

Edinburgh Lothian, GB (2013)
Lothian, GB (2013)
Midlothian, GB (2018 - 2021)
Loanhead, GB (2021 - 2023)
Edinburgh, GB (2006 - 2024)
Loanhead Midlothian, GB (2024)

Company Filing History:

38 out of 64

Artemis Intelligent Power Limited

Danfoss Power Solutions Aps

patents

4. 1 out of 4

Danfoss Scotland Limited

Mitsubishi Heavy Industries Limited

where one patent can have more than one assignee

Years Active: 2006-2025

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Areas of Expertise:

Hydraulic Apparatus

Fluid Power Control

Valve Timing

Energy Extraction

Hydraulic Transmission

Fluid-Working Machines

Hydraulic Machine Controller

Multi-Rotor Aerial Vehicle

Hydraulic Actuators

Variable Displacement

Cooling System

Digital Hydraulic Pump

45 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12372083 - Electronically commutated hydraulic machine and operating method to reduce generation of resonance effects (2025-07-29),

2. 12084839 - Hydraulic apparatus and method for a vehicle (2024-09-10),

3. 11959252 - Hydraulic apparatus and operating method (2024-04-16),

4. 11649727 - Valve timing in electronically commutated hydraulic machine (2023-05-16),

5. 11555293 - Apparatus with hydraulic machine controller (2023-01-17),

6. 11454003 - Apparatus with hydraulic machine controller (2022-09-27),

7. 11261862 - Hydrostatic apparatus and method of operating the same (2022-03-01),

8. 11162514 - Fluid power distribution and control system (2021-11-02),

9. 11137330 - Displacement of an object with hydraulic actuators (2021-10-05),

10. 11084576 - Hydraulic multi-rotor aerial vehicle (2021-08-10),

11. 11078934 - Measurement and use of hydraulic stiffness properties of hydraulic apparatus (2021-08-03),

12. 11002267 - Valve for fluid working machine, fluid working machine and method of operation (2021-05-11),

13. 10995476 - Apparatus (2021-05-04),

14. 10180135 - Industrial system with synthetically commutated variable displacement fluid working machine (2019-01-15),

15. 10161423 - Fluid power distribution and control system (2018-12-25),

Title: Innovations in Hydraulic Systems: The Work of Niall James Caldwell

Introduction

Niall James Caldwell, based in Edinburgh, GB, is a prolific inventor with a significant portfolio of 42 patents. His expertise primarily lies in hydraulic systems, where his inventive contributions have advanced the efficiency and functionality of hydraulic machinery.

Latest Patents

Caldwell's recent patents showcase his innovative approach to hydraulic technology. One notable invention is a hydraulic apparatus and operating method, which features multiple pump modules with interconnected working chambers linked to a common high-pressure manifold. The design includes a switching circuit that connects these pump modules to hydraulic circuit portions, enabling effective demand management for hydraulic fluids. Additionally, his patent on valve timing in electronically commutated hydraulic machines addresses potential cycle failures in drivetrain applications. By adjusting the timing of electronically controlled valves, Caldwell's invention enhances the reliability of hydraulic machines under varying operational conditions.

Career Highlights

Throughout his career, Caldwell has contributed to the advancement of hydraulic technologies while associated with esteemed companies such as Artemis Intelligent Power Limited and Sauer Danfoss Aps. His work has significantly impacted the hydraulic industry, demonstrating a commitment to innovation.

Collaborations

Caldwell's journey in invention has also involved collaborations with notable colleagues, including William Hugh Salvin Rampen and Uwe Bernhard Pascal Stein. These partnerships have fostered an environment of creativity and innovation, further enhancing the development of new technologies in the hydraulic field.

Conclusion

Niall James Caldwell exemplifies the innovative spirit of modern inventors, with a focus on enhancing hydraulic systems through his numerous patents. His contributions not only improve the efficiency of hydraulic machinery but also set the stage for future advancements in this critical area of engineering.

Profile summary based on public USPTO records.