Company Filing History:
2 out of 51 
1 out of 40 Years Active: 1978-1980
Title: The Innovative Contributions of Richard A. Johnson
Introduction
Richard A. Johnson is a notable inventor based in Midland Park, NJ (US). He has made significant contributions to the field of chemistry, particularly in the area of thallium compounds. With a total of three patents to his name, Johnson's work has implications for both industrial applications and environmental considerations.
Latest Patents
One of Johnson's latest patents is titled "Process for catalytic conversion of thallium (I) to thallium (III)." This innovative process involves converting a monovalent thallium compound into a trivalent thallium compound by treating the thallium (I) compound with molecular oxygen in the presence of a Group VIII noble metal catalyst. The process also utilizes a promoter that includes alkyl ammonium salts to facilitate the oxidation of the thallium (I) compound.
Another significant patent is "Extractive recovery of trivalent thallium values from aqueous solutions." This patent describes a method for recovering trivalent thallium values from aqueous media containing both trivalent and monovalent thallium values. The process involves treating the aqueous medium with an extractant that comprises a carboxylic acid medium, which has limited solubility in water. This method allows for the preferential extraction of dissolved trivalent thallium values into the carboxylic acid extractant medium.
Career Highlights
Throughout his career, Richard A. Johnson has worked with several companies, including Halcon Research and Development Corporation and Halcon International, Inc. His experience in these organizations has contributed to his expertise in the field of chemical processes and innovations.
Collaborations
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Conclusion
Richard A. Johnson's contributions to the field of chemistry through his patents demonstrate his innovative spirit and commitment to advancing scientific knowledge. His work on thallium compounds has the potential to impact various industries and environmental practices.