Inventors with similar research interests:
Location History:
- Fairbury, IL (US) (1999 - 2015)
- E. Secor, IL (US) (2016)
- Secor, IL (US) (2009 - 2024)
Company Filing History:
97 out of 9,451 
2 out of 967 
1 out of 244 
Years Active: 1999-2025
Areas of Expertise:
Title: Dana Ray Coldren: Innovator in Engine Systems
Introduction
Dana Ray Coldren, an accomplished inventor residing in Secor, Illinois, has made significant strides in the field of engine technology. With an impressive portfolio of 96 patents, Coldren has pioneered multiple innovations that enhance the efficiency and performance of engine systems.
Latest Patents
Among his latest inventions are two notable patents:
1. **Dual fuel engine system having fuel-actuated unit pumps and method** - This innovative dual fuel engine system consists of an engine and a sophisticated fuel system. The system includes a pressurized fuel reservoir, a first fuel pump, and multiple second fuel pumps that can adjust the pressure of the second fuel in relation to the first fuel, thereby increasing the overall flow rate. This advancement not only optimizes fuel usage but also enhances engine performance during operations requiring varied fuel types.
2. **Switching fuel rail for a diesel fuel engine** - This patent describes an internal combustion engine system that integrates a switching rail with a first fuel rail to manage fuel combustion within the engine's cylinders. The system is designed to receive either a primary or secondary fuel, with a controller that operates a switching valve. This capability ensures the engine can seamlessly transition between fuel types during different operational states, such as startup or shutdown, thus maintaining efficiency and reliability under varying conditions.
Career Highlights
Dana has spent a significant portion of his career at **Caterpillar Inc.**, where he contributed to innovations in engine systems and fuel efficiency. His tenure at such a prominent corporation highlights his expertise and dedication to advancing engineering solutions.
Collaborations
Throughout his career, Coldren has collaborated with notable colleagues including Joshua W. Steffen and Alan Ray Stockner. These partnerships emphasize the collaborative nature of innovation in engineering, where expertise from diverse backgrounds comes together to create groundbreaking solutions.
Conclusion
With a remarkable track record of 96 patents, Dana Ray Coldren continues to influence the future of engine technology. His recent inventions display a commitment to innovation and efficiency, setting new standards in the industry. As he progresses in his career, the engineering community eagerly anticipates his next contributions to the world of engine systems.
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.