This inventor holds 3 USPTO granted patents. Top assignees: Exxon Research and Engineering Company, Exxonmobil Chemical Patents Inc.. Active years: 1985-2004.
Company Filing History:

Years Active: 1985-2004
Title: John Joseph Ziemiak: Innovator in Hydrocarbon Reforming
Introduction
John Joseph Ziemiak is a notable inventor based in Annandale, NJ (US), recognized for his contributions to the field of hydrocarbon reforming. He holds a total of 3 patents, showcasing his innovative approaches to improving petroleum processes.
Latest Patents
Ziemiak's latest patents include a process for reforming petroleum hydrocarbon stocks. This process involves contacting hydrocarbons with a catalyst of zeolite KL impregnated with a metal promoter such as platinum. The zeolite crystals used in this process are of hockey-puck shape, which contributes to a good yield and selectivity for the desired reformed products. The catalyst is stable, associated with a low rate of coke formation, and has a long catalytically active life before regeneration is required. Another significant patent is the Staged-Acidity Naphtha Reforming, which provides increased C5+ liquid yields by systematically adjusting catalyst acidity within a multireactor reformer. This adjustment matches the different acid strengths required to selectively aromatize naphthene and paraffin hydrocarbons as they traverse the reformer train.
Career Highlights
Throughout his career, Ziemiak has worked with prominent companies such as Exxon Research and Engineering Company and ExxonMobil Chemical Patents Inc. His work has significantly impacted the efficiency and effectiveness of hydrocarbon reforming processes.
Collaborations
Ziemiak has collaborated with notable individuals in his field, including Gary Brice McVicker and Johannes Petrus Verduijn. These collaborations have likely contributed to the advancements in his patented processes.
Conclusion
John Joseph Ziemiak's innovative work in hydrocarbon reforming has led to significant advancements in the petroleum industry. His patents reflect a commitment to improving processes that enhance yield and efficiency.