Location History:
- Stamford, CT (US) (1990 - 1991)
- Naperville, IL (US) (1991 - 2002)
Company Filing History:
4 out of 48 
4 out of 68 
4 out of 24 Years Active: 1990-2002
Title: **Innovator John E. Hofmann: Pioneering Emission Reduction Technologies**
Introduction
John E. Hofmann, based in Naperville, IL, has made significant contributions to the field of emission reduction technology, holding a total of 12 patents. His innovative spirit and dedication to creating cleaner energy solutions have positioned him as a noteworthy inventor in the automotive industry.
Latest Patents
Among his most recent patents, Hofmann has developed technologies aimed at reducing nitrogen oxides (NOx) emissions from internal combustion engines. One notable invention is a system for on-demand generation of ammonia for selective catalytic reduction (SCR), which ensures that urea or a similar reagent is hydrolyzed under sufficient pressure to generate ammonia without producing unwanted solids that could harm injectors or catalysts. Furthermore, his patented process for urea pyrolysis involves converting urea into ammonia and isocyanic acid within a specially designed chamber, facilitating its use in reducing NOx emissions in lean-burn engines. The gases produced are injected into the exhaust stream prior to turbocharging, enhancing efficacy in the reduction process.
Career Highlights
Hofmann's career includes significant roles at leading firms such as Clean Diesel Technologies, Inc. and Fuel Tech, Inc. His work at these companies has been instrumental in advancing research and practical applications that address environmental challenges related to automotive emissions.
Collaborations
Throughout his career, Hofmann has collaborated with esteemed professionals in the field, including William H. Sun and Jeremy D. Peter-Hoblyn. Their collective expertise has furthered the development of innovative technologies focused on emission reductions.
Conclusion
John E. Hofmann's impactful inventions and commitment to innovation in emission reduction technologies highlight the important role of inventors in creating a sustainable future. Through his patents and collaborations, he continues to influence the automotive sector, working toward cleaner and more efficient engines. His contributions are a testament to the essential nature of innovation in addressing global environmental challenges.
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.