Pierre Cristau

This inventor holds 70 USPTO granted patents and 23 published patent applications, plus 10 CIPO patents and 50 EPO patents, primarily in Fungicidal Compounds (CPC class A01N). Top assignees: Bayer Intellectual Property Gmbh, Bayer Cropscience Ag, Bayer Aktiengesellschaft. Active years: 2011-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Pierre Cristau. Retrieved from https://idiyas.com/inventor/pierre-cristau

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

USPTO Granted Patents = 70 (Patent Applications = 23)

% Patents Active = 40.0

CIPO Patents = 10 (Patent Applications = 8)

EPO Patents = 50 (Patent Applications = 67)

Average Co-Inventor Count = 7.5

ph-index = 7

Forward Citations = 199(Granted Patents)

Forward Citations (Not Self Cited) = 120(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Lyon, FR (2015)
Köln, DE (2011 - 2016)
Cologne, DE (2013 - 2017)
Lyons, FR (2012 - 2022)

Company Filing History:

35 out of 721

Bayer Intellectual Property Gmbh

Bayer Aktiengesellschaft

where one patent can have more than one assignee

Years Active: 2011-2025

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Areas of Expertise:

Fungicidal Compounds

Pyrazole Derivatives

Carboxamide Derivatives

Heteroaryl Derivatives

Piperidine

Piperazine

Thio Derivatives

Active Compound Combinations

Crop Protection Agents

Biological Control Agent

Fungicide Composition

Heterocyclyl Pyridazine

70 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12501900 - Heterocyclyl pyridazine as fungicidal compounds (2025-12-23),

2. 12414565 - Pyridazine (THIO)amides as fungicidal compounds (2025-09-16),

3. 11457629 - Heteroarylphenylaminoquinolines and analogues (2022-10-04),

4. 10945432 - Active compound combinations comprising a (thio)carboxamide derivative and a fungicidal compound (2021-03-16),

5. 10499641 - Heteroarylpiperidine and -piperazine derivatives as fungicides (2019-12-10),

6. 10426169 - Heteroarylpiperidine and -piperazine derivatives as fungicides (2019-10-01),

7. 10246420 - Pyrazole derivatives (2019-04-02),

8. 10244757 - N-cycloalkyl-N-{[2-(1-substitutedcycloalkyl)phenyl]methylene}-(thio)carboxamide derivatives (2019-04-02),

9. 10244756 - Fungicidal N-cycloalkyl-N-{[ortho-(1-substituted-cycloalkyl)heteroaryl]methyl}(thio)carboxamides (2019-04-02),

10. 10130095 - Fungicidal compositions of pyrazolecarboxylic acid alkoxyamides (2018-11-20),

11. 10125126 - N-cycloalkyl-N-[(heterocyclylphenyl)methylene]-(thio)carboxamide derivatives (2018-11-13),

12. 10071967 - N-cycloalkyl-N-{[2-(1-substitutedcycloalkyl)phenyl]methylene}-(thio)carboxamide derivatives (2018-09-11),

13. 10070645 - N-cycloalkyl-N-{[2-(1-substitutedcycloalkyl)phenyl]methylene}-(thio)carboxamide derivatives (2018-09-11),

14. 10004232 - Piperidine pyrazoles as fungicides (2018-06-26),

15. 9975889 - Heteroaryl piperidine and heteroaryl piperazine derivatives as fungicides (2018-05-22),

Title: Innovations and Contributions of Pierre Cristau in the Field of Fungicides

Introduction

Pierre Cristau, a notable inventor located in Lyons, France, is recognized for his significant contributions to the field of fungicides. With an impressive portfolio of 68 patents, his work has been pivotal in developing effective solutions for controlling phytopathogenic fungi in agriculture.

Latest Patents

Among his latest patents, two stand out due to their innovative approaches to fungicidal compounds. The first patent addresses heteroarylphenylaminoquinolines and analogues, focusing on the creation of active compounds and their use in fungicide compositions. This innovation is particularly relevant for enhancing agricultural productivity through effective plant protection. The second patent presents active compound combinations featuring a unique pyrazole-4-carboxamide derivative alongside other fungicidal agents, aimed at both preventive and curative measures against harmful plant fungi.

Career Highlights

Cristau has had a distinguished career, having worked with prominent companies such as Bayer Intellectual Property GmbH and Bayer CropScience AG. His tenure at these organizations has facilitated the advancement of research and development in fungicidal technology, making substantial impacts on the agricultural industry.

Collaborations

Throughout his career, Pierre Cristau has collaborated with talented individuals such as Ulrike Wachendorff-Neumann and Tomoki Tsuchiya. These partnerships have fostered a creative environment that has led to the successful development of numerous patented inventions.

Conclusion

Pierre Cristau's innovative spirit and commitment to enhancing agricultural practices through effective fungicides have established him as a key figure in the field. His extensive patent portfolio reflects his dedication to research and his ability to transform scientific concepts into practical solutions for the agricultural sector.

Profile summary based on public USPTO records.