Location History:
- Collegeville, PA (US) (1983 - 1984)
- Worcester, PA (US) (1983 - 1989)
- Worcester Township, Montgomery County, PA (US) (1985 - 1991)
- King of Prussia, PA (US) (1991)
Company Filing History:
Years Active: 1983-1991
Title: The Innovative Contributions of David M Gardner
Introduction
David M Gardner is a notable inventor based in King of Prussia, Pennsylvania. He holds a total of 10 patents, showcasing his significant contributions to the field of chemistry and chemical processes. His work has led to advancements in the preparation of various chemical compounds, particularly sulfonamides and sulfonyl halides.
Latest Patents
One of his latest patents is titled "Process for the preparation of alkane- and arenesulfonamides." This patent describes a method for producing alkane- and arenesulfonamides in high purity and yield. The process involves reacting ammonia or alkylamine with an alkane- or arenesulfonyl halide under boiling conditions, without the need for an added solvent. The heat generated during the reaction is managed by the heat of vaporization of the ammonia or alkylamine.
Another significant patent is for the "Preparation of alkanesulfonyl halides and alkanesulfonic acids." This continuous method allows for the preparation of alkanesulfonyl halides, particularly chlorides, and alkanesulfonic acids in high yields. The method effectively avoids the formation of undesirable side-products and the net production of hydrogen chloride as a by-product. It involves the continuous electrolysis of an alkanethiol or dialkyl disulfide in an aqueous hydrochloric acid solution, with the electrolyzed product mixture being continuously removed from the electrolysis zone.
Career Highlights
Throughout his career, David M Gardner has worked with prominent companies such as Pennwalt Corporation and Atochem North America, Inc. His experience in these organizations has contributed to his expertise in chemical processes and innovation.
Collaborations
David has collaborated with notable individuals in his field, including Gregory A Wheaton and Roger T Clark. These collaborations have likely enriched his work and led to further advancements in his research.
Conclusion
David M Gardner's contributions to the field of chemistry through his patents and collaborations highlight his innovative spirit and dedication to advancing chemical processes. His work continues to influence the industry and inspire future inventors.