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For the Inventor, By the Inventor

Bartlesville, OK, United States of America

Harold W Mark

This inventor holds 31 USPTO granted patents, primarily in Ore Flotation Technology. Top assignees: Phillips Petroleum Company, Other. Active years: 1980-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Harold W Mark. Retrieved from https://idiyas.com/inventor/harold-w-mark

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

USPTO Granted Patents = 31

% Patents Active = 100.0

Average Co-Inventor Count = 2.7

ph-index = 8

Forward Citations = 187(Granted Patents)


Location History:

  • Summerville, SC (US) (1989 - 1991)
  • Summerville, NC (US) (1991)
  • Bartlesville, OK (US) (1980 - 1994)

Company Filing History:

goldMedal30 out of 5,071 
 
Phillips Petroleum Company
 patents
silverMedal1 out of 834,453 
Other
 patents

Years Active: 1980-1994

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Areas of Expertise:
Ore Flotation
Dithiocarbamates
Cracking Catalysts
Flotation Agents
Corrosion Inhibition
Metal Passivation
Hydrocarbon Processing
Mineral Processing
Zeolitic Catalysts
Isethionic Acid
Polyamines
Antimony Compounds
31 patents (USPTO):Explore Patents
1. 5358630 - Regenerating zeolitic cracking catalyst (1994-10-25),
2. 5053530 - Preparation of isethionic acid with organic acid (1991-10-01),
3. 4990656 - Polyamine substituted dithiocarbamate and process for producing the same (1991-02-05),
4. 4857179 - Ore flotation and mineral flotation agents for use therein (1989-08-15),
5. 4806234 - Ore flotation (1989-02-21),
6. 4747940 - Ore flotation and tri-alkali metal-di(carboxyalkyl) dithiocarbamate and (1988-05-31),
7. 4721813 - Method for the oxidation of mercaptoalkanols to dithiodiglycols (1988-01-26),
8. 4702821 - Ore flotation and di-alkali metal-di(carboxyalkyl)dithiocarbamate and (1987-10-27),
9. 4650568 - Trithiocarbonates as depressants in ore flotation (1987-03-17),
10. 4637833 - Inhibiting corrosion: benzylsulfinylacetic acid or benzylsulfonylacetic (1987-01-20),
11. 4619760 - Ore flotation agent from 2-mercaptobenzimidazole and flotation processes (1986-10-28),
12. 4595538 - Tri-alkali metal-di(carboxyalkyl)dithiocarbamate and (1986-06-17),
13. 4559153 - Metal working lubricant (1985-12-17),
14. 4554108 - Alkali carboxyalkyl dithiocarbamates and use as ore flotation reagents (1985-11-19),
15. 4554068 - Ore flotation and flotation agents for use therein (1985-11-19),

Title: Innovations and Achievements of Harold W. Mark

Introduction

Harold W. Mark is a notable inventor based in Bartlesville, Oklahoma, recognized for his contributions to the field of chemical engineering and catalysis. He holds an impressive portfolio of 31 patents, showcasing his innovative approaches and solutions to complex chemical processes. His work has significantly impacted various industrial applications, particularly in petroleum refining and chemical synthesis.

Latest Patents

Among his latest inventions, Harold has developed a method for regenerating zeolitic cracking catalysts. This innovative process effectively counters the detrimental effects of contaminating metals on crystalline aluminosilicate catalysts by contacting them with a reducing gas under suitable conditions. In a preferred embodiment of this invention, the catalyst contains antimony, enhancing its performance and durability.

Another notable patent involves the preparation of isethionic acid using an organic acid. This synthesis process entails the reaction of alkali metal isethionate with an organic acid, providing a more efficient method for producing this valuable compound.

Career Highlights

Throughout his career, Harold W. Mark has made significant contributions while working at Phillips Petroleum Company. His work at the company has led to numerous breakthroughs in catalyst development and chemical processes, reflecting his expertise and dedication to innovation within the industry.

Collaborations

Harold has also collaborated with talented individuals in the field, including Clarence R. Bresson and Brent J. Bertus. These collaborations have allowed for the exchange of ideas and the advancement of collective knowledge, further enhancing the impact of their inventions.

Conclusion

Harold W. Mark's inventive spirit and dedication to advancing chemical engineering are epitomized through his extensive patent portfolio. His innovative methodologies and collaborative efforts have paved the way for improved processes in catalysis and chemical synthesis, leaving a lasting legacy in the industry.

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]
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