Company Filing History:

15 out of 8,451

Deere + Company

patents

1 out of 1,388

Iowa State University Research Foundation, Inc.

Years Active: 1979-2020

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17 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10670124 - Multi-mode infinitely variable transmission (2020-06-02),

2. 10655710 - Multi-mode infinitely variable transmission that provides seamless shifting (2020-05-19),

3. 10408310 - Gearbox control method (2019-09-10),

4. 10119598 - Multi-mode infinitely variable transmission (2018-11-06),

5. 9981665 - Energy storage and delivery for power trains of work vehicles (2018-05-29),

6. 9562592 - Method for controlling gear shift (2017-02-07),

7. 9206885 - Multi-mode infinitely variable transmission (2015-12-08),

8. 8347618 - Dual pump hydraulic system (2013-01-08),

9. 6915873 - Suspended drive axle and agricultural tractor with same (2005-07-12),

10. 6779623 - Suspended drive axle and agricultural tractor with same (2004-08-24),

11. 6722994 - Suspended drive axle and agricultural tractor with same (2004-04-20),

12. 6470991 - Tractor with front suspension (2002-10-29),

13. 5449329 - Method for controlling transmission control clutches (1995-09-12),

14. 5224577 - Calibration method for transmission control clutches (1993-07-06),

15. 5026334 - Single piston activation of a planetary transmission (1991-06-25),

Title: The Innovations of Dennis Lee Jeffries

Introduction

Dennis Lee Jeffries is a notable inventor based in Waterloo, IA, with a remarkable portfolio of 17 patents to his name. His contributions to the field of engineering, especially in the realm of transmissions, have significantly advanced his industry.

Latest Patents

Among his latest innovations, Jeffries developed a Multi-mode Infinitely Variable Transmission (IVT). This sophisticated system offers various transmission modes, including a serial mode for powered zero and creeper ground speeds, and split-path modes for higher field speeds. Additionally, he designed a Multi-mode Infinitely Variable Transmission that provides seamless shifting, ensuring smooth transitions between the range of available transmission modes.

Career Highlights

Jeffries has had a significant impact in his career, contributing his expertise to prestigious organizations such as Deere & Company and the Iowa State University Research Foundation, Inc. His work in these institutions demonstrates his commitment to innovation and excellence in engineering.

Collaborations

Throughout his career, Jeffries has worked alongside talented professionals such as Andrew K Rekow and David Mueller. These collaborations reflect a shared vision of pushing the boundaries of transmission technology and developing groundbreaking solutions.

Conclusion

Dennis Lee Jeffries stands out as a prolific inventor whose contributions have played a critical role in evolving transmission systems. With 17 patents to his name and a solid foundation built through collaboration and professional experience, he continues to influence the engineering landscape significantly.

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3 patents (EPO):

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.