South Pasadena, CA, United States of America

John J Kalvinskas

This inventor holds 6 USPTO granted patents. Top assignees: California Institute of Technology, The United States of America as Represented by the Administrator of the. Active years: 1976-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: John J Kalvinskas. Retrieved from https://idiyas.com/inventor/john-j-kalvinskas

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.5

ph-index = 4

Forward Citations = 36(Granted Patents)


Location History:

  • S. Pasadena, CA (US) (1976)
  • Pasadena, CA (US) (1980 - 1982)
  • South Pasadena, CA (US) (1982 - 1985)

Company Filing History:


Years Active: 1976-1985

Loading Chart...
6 patents (USPTO):Explore Patents

Title: Innovations of John J Kalvinskas

Introduction

John J Kalvinskas is a notable inventor based in South Pasadena, CA (US). He holds a total of 6 patents that showcase his contributions to the field of desulfurization technology. His work primarily focuses on methods to reduce sulfur content in carbonaceous materials, particularly coal.

Latest Patents

One of his latest patents is for a method of fluidized bed desulfurization. This innovative process involves the continuous fluidized suspension of high sulfur content carbonaceous material in a reactor using chlorine gas, inert dechlorinating gas, and hydrogen gas. The system is designed to reduce sulfur content by at least 50% through a controlled treatment process. Another significant patent is for the hydrodesulfurization of chlorinized coal. This method describes the low-temperature chlorinolysis of coal in liquid media, followed by hydrodesulfurization at elevated temperatures. The result is a substantial reduction in sulfur content, achieving up to 90% by weight, while also improving the quality of the coal.

Career Highlights

Throughout his career, John J Kalvinskas has worked with prestigious institutions, including the California Institute of Technology and the United States of America as represented by the Administrator. His innovative approaches have made significant impacts in the field of coal desulfurization.

Collaborations

John has collaborated with notable individuals such as Naresh K Rohatgi and William A Mueller. Their combined expertise has contributed to advancements in the technologies they have developed.

Conclusion

John J Kalvinskas is a distinguished inventor whose work in desulfurization technology has led to significant advancements in reducing sulfur content in coal. His innovative patents and collaborations highlight his contributions to the field.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…