Hans-Joachim Santel

This inventor holds 378 USPTO granted patents, plus 6 CIPO patents and 4 EPO patents, primarily in Herbicide Development (CPC class 71 92). Top assignees: Bayer Aktiengesellschaft, Arvesta Corporation, Arysta Lifescience North America Corporation. Active years: 1986-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hans-Joachim Santel. Retrieved from https://idiyas.com/inventor/hans-joachim-santel

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

USPTO Granted Patents = 378

% Patents Active = 95.0

CIPO Patents = 6 (Patent Applications = 7)

EPO Patents = 4 (Patent Applications = 5)

Average Co-Inventor Count = 6.2

ph-index = 34

Forward Citations = 4,317(Granted Patents)

Forward Citations (Not Self Cited) = 4,059(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

Colonge, DE (1987 - 1988)
Koln, DE (1988)
Cologne, DE (1986 - 1993)
West Haven, CT (US) (1996)
Cansas City, KS (US) (1997)
Bayerwerk, DE (1999)
D 51371 Leverkusen, DE (2001)
Leawood, KS (US) (2002 - 2010)
Leverkusen, DE (1987 - 2021)

Company Filing History:

367 out of 12,268

Bayer Aktiengesellschaft

Arysta Lifescience North America Corporation

patents

4. 1 out of 1

Bayer Akatiengesellschaft

patent

5. 1 out of 1

Bayer Aktiwngesellschaft

Bayer Intellectual Property Gmbh

patents

8. 1 out of 38

Bayeraktiengesellschaft

patents

9. 1 out of 98

Nihon Bayer Agrochem, K.k.

patents

10. 4 out of 834,513

Other

patents

where one patent can have more than one assignee

Years Active: 1986-2021

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Areas of Expertise:

Herbicides

Sulphonylamino Compounds

Triazolinones

Pesticides

Heterocycles

Aryl Sulphony Ureas

Phenylketoenols

Thiocarboxylic Acids

Nitrogen-Containing Compounds

Spiroheterocycles

Aminouracils

Diamino Triazines

378 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11202447 - Herbicides based on substituted thien-3-yl-sulphonylamino(thio)carbonyl-triazolin(thi)ones and 4-HPPD-inhibitors (2021-12-21),

2. 8530384 - Herbicides based on substituted thien-3-yl-sulphonylamino(thio) carbonyl-triazolin(thi)ones and 4-HPPD-inhibitors (2013-09-10),

3. 7723266 - Substituted aryl sulphony(thio)ureas used as herbicides (2010-05-25),

4. 7651978 - Selective herbicides based on a substituted phenylsulphonylaminocarbonyl-triazolinone (2010-01-26),

5. RE39607 - Herbicidal sulphonylamino(thio) carbonyl compounds (2007-04-30),

6. RE39263 - Substituted aromatic thiocarboxylic acid amides and their use as herbicides (2006-09-04),

7. 7012041 - Phenylpyridazinones (2006-03-14),

8. 6933261 - 2,4,5-Trisubstituted phenylketoenols (2005-08-23),

9. 6906006 - N-arly-substituted nitrogen-containing heterocycles, processes and novel intermediates for their preparation, and their use as herbicides and plant growth regulators (2005-06-14),

10. 6858741 - Alkyl-dihalogenated phenyl-substituted ketoenols useful as pesticides and herbicides (2005-02-22),

11. 6838414 - Substituted aryl sulphonyl(thio)ureas used as herbicides (2005-01-04),

12. 6774133 - Substituted spiroheterocyclic 1H-3-aryl-pyrrolidine-2,4-dione derivatives, processes for their preparation, and their use as pesticides (2004-08-10),

13. 6759548 - Dialkyl-halogenophenyl-substituted ketoenols (2004-07-06),

14. 6746990 - 2-phenyl-substituted heterocyclic 1,3-ketoenols as herbicides and pesticides (2004-06-08),

15. 6743755 - Substituted N-aryl nitrogen-containing heterocyclic compounds (2004-06-01),

Title: Hans-Joachim Santel: A Pioneer in Herbicide Innovation and Patents

Introduction:

Hans-Joachim Santel, hailing from Leverkusen, Germany, is a renowned inventor and innovator in the field of herbicides. With an impressive portfolio of 376 patents, Santel has made significant contributions to the development of herbicidal compositions and the control of unwanted plant growth. This article delves into Santel's latest patents, career highlights, notable collaborations, and highlights the impact of his work in the industry.

Latest Patents:

Santel's latest patents revolve around herbicides based on substituted thien-3-yl-sulphonylamino(thio)carbonyl-triazolin(thi)ones and 4-HPPD-inhibitors. These herbicidal compositions are designed to effectively control unwanted plant growth. Additionally, the patents highlight the use of the compositions in various applications and the process for producing them.

Career Highlights:

Throughout his career, Santel has achieved remarkable success in the field of herbicides. He has made significant advancements in formulating effective herbicidal compositions and contributed to the development of cutting-edge techniques for controlling unwanted plant growth. His relentless pursuit of innovation has resulted in an extensive patent portfolio, showcasing his expertise and leadership in the industry.

Collaborations:

Santel's contributions have been fostered through collaboration with renowned industry experts. Some of his notable colleagues include Robert R Schmidt and Klaus Lurssen. Collaborations with such talented individuals have enabled Santel to combine expertise, optimize research efforts, and develop groundbreaking herbicidal compositions.

Conclusion:

Hans-Joachim Santel stands out as an influential figure in the field of herbicides, with an impressive collection of 376 patents. His work in developing herbicidal compositions based on substituted thien-3-yl-sulphonylamino(thio)carbonyl-triazolin(thi)ones and 4-HPPD-inhibitors has paved the way for more targeted, efficient, and environmentally friendly approaches to controlling unwanted plant growth. Santel's remarkable career highlights and collaborations with esteemed colleagues showcase his dedication to innovation in this vital area. As the industry looks towards the future, Santel's contributions will undoubtedly continue to shape the evolution of herbicide technology.

Profile summary based on public USPTO records.