Quandela has a total of 21 patents globally, out of which 2 have been granted. Of these 21 patents, more than 76% patents are active. Europe (EPO) is where Quandela has filed the maximum number of patents, followed by France. Parallelly, Europe (EPO) seems to be the main focused R&D centre and also France is the origin country of Quandela.
Quandela was founded in 2017. The company operates a quantum computing platform designed to accelerate the advancement of quantum communication networks and optical quantum computers. Its single-photon source device integrates photonics with semiconductor quantum dots to support quantum communication, computing, and sensing. This technology enables the efficient collection of emitted photons with exceptionally high efficiency, bringing photon-based quantum computers closer to practical realization in the near future.
Do read about some of the most popular patents of Quandela which have been covered by us in this article and also you can find Quandela patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Quandela patent portfolio.
How many patents does Quandela have?
Quandela has a total of 21 patents globally. These patents belong to 8 unique patent families. Out of 21 patents, 16 patents are active.
How Many Patents did Quandela File Every Year?

Are you wondering why there is a drop in patent filing for the last two years? It is because a patent application can take up to 18 months to get published. Certainly, it doesn’t suggest a decrease in the patent filing.
| Year of Patents Filing or Grant | Quandela Applications Filed | Quandela Patents Granted |
| 2025 | 1 | – |
| 2024 | 3 | 2 |
| 2023 | 8 | – |
| 2022 | 8 | – |
| 2021 | 1 | – |
How many Quandela patents are Alive/Dead?
Worldwide Patents

How Many Patents did Quandela File in Different Countries?

Countries in which Quandela Filed Patents
| Country | Patents |
| Europe (EPO) | 8 |
| France | 3 |
| United States of America | 1 |
| Australia | 1 |
| Canada | 1 |
| Japan | 1 |
Where are Research Centers of Quandela Patents Located?

What Percentage of Quandela US Patent Applications were Granted?
Quandela (Excluding its subsidiaries) has filed 1 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these all the patent has been granted leading to a grant rate of 100%.
Below are the key stats of Quandela patent prosecution at the USPTO.

Which Law Firms are managing US Patents for Quandela?
| Law Firm | Total Applications | Success Rate |
| Leason Ellis Llp | 1 | 100.00% |
List of Quandela patents
| Quandela Patents | Title |
| EP4589486A1 | Method And System For Mitigating The Effects Of Photon Loss On The Output Of A Linear Optical Quantum Circuit |
| EP4500315A1 | Method For The Simultaneous Generation And Certification Of Numbers On A Photonic Chip |
| EP4498294A1 | A Modular Quantum Data Processing System |
| WO2025153698A1 | Method And System For Mitigating The Effects Of Photon Loss On The Output Of A Linear Optical Quantum Circuit |
| WO2025021872A1 | A Modular Quantum Data Processing System |
| US11867957B2 | High-Precision Method For Coupling An Optical Fiber With A Photonic Device And Implementation Microstructure |
| FR3122503B1 | Method For High Precision Coupling Of An Optical Fiber With A Photonic Device And Implementation Microstructure |
| EP4472127A1 | Method For Enhancing The Privacy Of Delegated Quantum Computations, And System For Implementing Such Method |
| EP4465010A1 | Method And System For Characterization Of A Photonic Circuit |
| EP4375888A1 | Method For Solving Matrix Problems, And System For Implementing This Method |
| EP4330750A1 | Method For High-Precision Coupling Of An Optical Fiber To A Photonic Device And Microstructure Used To Implement Said Method |
| EP4451164A1 | Zero-Photon Generator Method And System |
| WO2024246286A1 | Method For Enhancing The Privacy Of Delegated Quantum Computations, And System For Implementing Such Method |
| WO2024115371A1 | Method For Solving Matrix Problems, And System For Implementing This Method |
| WO2023187168A1 | Method For The Simultaneous Generation And Certification Of Numbers On A Photonic Chip |
| FR3134202A1 | Method For Generating And Simultaneously Certifying Random Numbers Using A Quantum Device With Non-Zero Crosstalk, And System For Implementing This Method |
| FR3134203A1 | Method For Generating And Simultaneously Certifying Random Numbers Using A Quantum Device With Non-Zero Crosstalk, And System For Implementing This Method |
| AU2022265553A1 | Method For High-Precision Coupling Of An Optical Fiber With A Photonic Device And Implementation Microstructure |
| WO2022229559A1 | Method For High-Precision Coupling Of An Optical Fiber To A Photonic Device And Microstructure Used To Implement Said Method |
| CA3216068A1 | Method For High-Precision Coupling Of An Optical Fiber To A Photonic Device And Microstructure Used To Implement Said Method |
| JP2022170695A | High-Precision Method For Coupling Optical Fiber With Photonic Device And Implementation Microstructure |
What are Quandela key innovation segments?
What Technologies are Covered by Quandela?

The chart below distributes patents filed by Quandela in different countries on the basis of the technology protected in patents. It also represents the markets where Quandela thinks it’s important to protect particular technological inventions.

R&D Focus: How has Quandela search focus changed over the years?

EXCLUSIVE INSIGHTS COMING SOON!
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