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Alain Leveque

This inventor holds 18 USPTO granted patents. Top assignees: Rhone-Poulenc Industries, Rhone-Poulenc Chimie, Rhone-Poulenc S.a.. Active years: 1976-1995.

USPTO Granted Patents = 18

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 8

Forward Citations = 182(Granted Patents)

Location History:

Paris, FR (1976 - 1990)
La Rochelle, FR (1990 - 1995)

Company Filing History:

11 out of 521

Rhone-Poulenc Industries

Rhone-Poulenc Specialites Chimiques

patents

Years Active: 1976-1995

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18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5403565 - Thorium phosphates prepared by insolubilization of soluble thorium (1995-04-04),

2. 5338520 - Recovery of neodymium/didymium values from bastnaesite ores (1994-08-16),

3. 5006254 - Reducing the radium radioactivity of aqueous effluents (1991-04-09),

4. 4964997 - Liquid/liquid extraction of rare earth/cobalt values (1990-10-23),

5. 4964996 - Liquid/liquid extraction of rare earth/cobalt values (1990-10-23),

6. 4927609 - Recovery of gallium/rare earth values from oxide mixtures thereof (1990-05-22),

7. 4724129 - Method of recovering gallium from very basic solutions by liquid/liquid (1988-02-09),

8. 4499058 - Liquid/liquid extraction of acidic aqueous streams comprising (1985-02-12),

9. 4461748 - Liquid-liquid extraction of rare earth/uranium/thorium values (1984-07-24),

10. 4407780 - Reductive stripping of uranium values from wet-process phosphoric acid (1983-10-04),

11. 4404174 - Purification of solutions of gallium values by serial ion (1983-09-13),

12. 4372923 - Purification of solutions of gallium values by liquid/liquid extraction (1983-02-08),

13. 4369166 - Purification of solutions of gallium values by liquid/liquid extraction (1983-01-18),

14. 4255394 - Process for the separating of rare earths (1981-03-10),

15. 4241029 - Liquid/liquid extraction of gallium values from basic aqueous solutions (1980-12-23),

Title: The Innovative Contributions of Alain Leveque

Introduction

Alain Leveque is a prominent inventor based in Paris, France. He has made significant contributions to the field of environmental science and materials engineering. With a total of 18 patents to his name, Leveque has focused on developing innovative solutions to pressing environmental issues.

Latest Patents

One of Leveque's latest patents involves the preparation of thorium phosphates through the insolubilization of soluble thorium. This invention addresses environmental pollution caused by the industrial discharge and storage of water-soluble thorium compounds. By converting these compounds into innocuous water-insoluble thorium phosphates, Leveque's method significantly reduces potential environmental hazards. Another notable patent focuses on the recovery of neodymium and didymium values from bastnaesite ores. This process selectively extracts these valuable elements while excluding cerium and trace amounts of thorium, thereby enhancing the efficiency of rare earth element recovery.

Career Highlights

Throughout his career, Alain Leveque has worked with notable companies such as Rhone-Poulenc Industries and Rhone-Poulenc Chimie. His work in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in environmental technology and materials science.

Collaborations

Leveque has collaborated with esteemed colleagues, including Jacques Helgorsky and Jean-Louis Sabot. These partnerships have fostered a collaborative environment that has led to the successful development of his patents and innovations.

Conclusion

Alain Leveque's contributions to the field of environmental science through his innovative patents demonstrate his commitment to addressing critical environmental challenges. His work continues to inspire future advancements in the industry.

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