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New Chemical Compounds for Protecting Crops from Fungal Diseases

A patent describing a specific family of chemical compounds designed to kill or inhibit the growth of fungi that damage agricultural crops.

Granted 2020ActiveExpires 2034Owned by Bayer CropScience AGInvented by Tomoki Tsuchiya, Philippe Rinolfi, Philippe Desbordes

Original patent title: “N-hetaryl(thio)carbonyl-2-(benzocycloalken-1-yl)cyclamines and their use as fungicides

Plain-English explanation by SahiLast reviewed · June 15, 2026

A patent describing a specific family of chemical compounds designed to kill or inhibit the growth of fungi that damage agricultural crops. Granted to Bayer CropScience AG in 2020 with 22 claims.

Key facts

Patent numberUS 10626109
StatusActive
FieldBiotech & Medicine
AssigneeBayer CropScience AG
InventorsTomoki Tsuchiya, Philippe Rinolfi, Philippe Desbordes
Filed2014
Granted2020
Claims22
Times cited0
LitigationNone on record
Value · $43K$137KMinimal

Coverage

What does this patent actually cover?

This patent defines a class of complex organic molecules called N-hetaryl(thio)carbonyl-2-(benzocycloalken-1-yl)cyclamines. These molecules are engineered to act as fungicides, meaning they disrupt the biological processes of fungi that cause plant diseases. The structure consists of a central ring system (piperidine or pyrrolidine) attached to a benzocycloalkene group and a specific heterocyclyl group. By applying these compounds to crops, farmers can prevent or treat infections caused by phytopathogenic fungi, which are organisms that feed on plant tissue.

The gap

What does this patent NOT cover?

  • Does not cover naturally occurring fungicides or biological control agents like beneficial bacteria.
  • Does not cover chemical structures that fall outside the specific molecular formula (I) defined in the claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more →.
  • Does not cover methods for manufacturing the chemical that deviate from the specific synthetic pathways implied by the intermediate compounds.
  • Does not cover the application of these chemicals to non-plant targets or non-fungal pathogens.

These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.

What made this novel

The innovation lies in the specific arrangement of the heterocyclyl group attached to the cyclamine core, which creates a precise molecular shape capable of binding to and inhibiting essential fungal enzymes while maintaining stability in field conditions.

N-hetaryl(thio)carbonyl-2-(ben…(Primary claim)biotechmechanical

Schematic visualization of the patent's claim structure. Hand-drawn diagrams in progress for each landmark patent.

Where you've seen this

Real-world examples

01

Experimental agricultural fungicide formulations

02

Crop protection products for cereal and vegetable farming

Why it matters

The bigger picture

Fungal diseases are a primary cause of crop loss globally, threatening food security and farm profitability. Companies like Bayer invest in these proprietary chemical structures to develop more effective, targeted treatments that require lower application rates or offer better resistance management compared to older, generic fungicides.

Filed

October 7, 2014

Granted

April 21, 2020

Market context

Who's building on this

Companies in this space

Bayer CropScience remains the primary entity associated with this patent. Other major agricultural chemical firms like Syngenta, BASF, and Corteva are actively researching similar heterocyclic chemical scaffolds to address the ongoing challenge of fungal resistance to current treatments.

Market impact

This patent contributes to the ongoing development of the global crop protection market. By securing intellectual property for these specific molecular structures, the assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more → can protect its investment in the R&D required to bring new, effective fungicides to market, which is essential for maintaining yields in modern industrial agriculture.

Claim 1 — Plain English

What this patent covers

This patent defines a class of complex organic molecules called N-hetaryl(thio)carbonyl-2-(benzocycloalken-1-yl)cyclamines. These molecules are engineered to act as fungicides, meaning they disrupt the biological processes of fungi that cause plant diseases. The structure consists of a central ring system (piperidine or pyrrolidine) attached to a benzocycloalkene group and a specific heterocyclyl group. By applying these compounds to crops, farmers can prevent or treat infections caused by phytopathogenic fungi, which are organisms that feed on plant tissue.

The clever bit

The innovation lies in the specific arrangement of the heterocyclyl group attached to the cyclamine core, which creates a precise molecular shape capable of binding to and inhibiting essential fungal enzymes while maintaining stability in field conditions.

What it does not cover

  • Does not cover naturally occurring fungicides or biological control agents like beneficial bacteria.
  • Does not cover chemical structures that fall outside the specific molecular formula (I) defined in the claims.
  • Does not cover methods for manufacturing the chemical that deviate from the specific synthetic pathways implied by the intermediate compounds.
  • Does not cover the application of these chemicals to non-plant targets or non-fungal pathogens.

Patent timeline

Filing

Application submitted to the patent office

Publication

Application published, typically 18 months after filing

Grant

Patent officially issued

PatentBrief Score

Impact Score

Early stage

Citation count

0/40

No citations yet

Claim breadth

15/20

Broad claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more →

Recency

10/20

Granted 5–10 years ago

Assignee scale

0/20

Independent or smaller assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more →

PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.

Heuristic Value Estimate

What this patent might be worth

Minimal

$43K$137K

Midpoint $86K · 8.3 yr remaining · industry ×2.2

Adjust inputs →

Heuristic only — blends forward/backward citation counts, claim scope, time remaining, litigation history, and CPC-derived industry baseline. Real valuations need a professional appraisal.

The original legal language

Original claims

22 claims as filed with the patent office.

Concepts involved

ClaimPrior artNon-obviousnessNoveltySpecificationAssigneePatent term

Citations

Patent lineage

Cites earlier patents

16

earlier patents this invention cites as foundations

View prior art →

Cite this patent

Tsuchiya, T., Rinolfi, P., & Desbordes, P. (2020). New Chemical Compounds for Protecting Crops from Fungal Diseases (U.S. Patent No. 10,626,109). U.S. Patent and Trademark Office. https://patentbrief.org/patent/us/10626109/symdeko-tezacaftor-ivacaftor

Auto-generated from the patent record. Double-check author order and the issue date against the official USPTO document before submitting.

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Common Questions

Frequently Asked Questions

What does New Chemical Compounds for Protecting Crops from Fungal Diseases cover?

A patent describing a specific family of chemical compounds designed to kill or inhibit the growth of fungi that damage agricultural crops.

Who owns patent US 10626109?

Bayer CropScience AG owns this patent, granted in 2020.

When does this patent expire?

This patent is expected to expire on April 21, 2040, when the invention enters the public domain.

What problem does this patent solve?

Fungal diseases are a primary cause of crop loss globally, threatening food security and farm profitability. Companies like Bayer invest in these proprietary chemical structures to develop more effective, targeted treatments that require lower application rates or offer better resistance management compared to older, generic fungicides.

What does this patent NOT cover?

Does not cover naturally occurring fungicides or biological control agents like beneficial bacteria.

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Last reviewed: June 15, 2026 · PatentBrief is not a law firm and this is not legal advice.