Crunchfish receives positive examination report for strategically important Digital Cash patent application

Crunchfish Digital Cash (“Crunchfish”) has received a positive International Search Report in the international patenting process for its strategically important Trusted Application Protocol (TAP) patent application. Crunchfish’s communication security protocol for mobile applications is based on TAP as it provides end-to-end integrity if internet access is available and enables communication over alternative networks if internet is not available.

A diagram of a communication stack

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Digital payments are not as robust as required given its critical role as a public good in the modern society. This is also true for digital applications in general. Typically implemented using a client server network model, the TAP enables digital service without internet access. Crunchfish’s innovative product Digital Cash telecom is an example of the use of TAP when internet access is not available. This will be piloted for the Digital Rupee, the Central Bank Digital Currency (CBDC) in India. When the internet TCP/IP communication is available the TAP enables end-to-end integrity for client server communications.


The International Search Report (ISR) is the first feedback round in the international PCT patenting process. This has now been issued for Crunchfish’s strategically important TAP patent application with international patent application number PCT/IB2024/051131. The PCT-process and its milestones was described in more detail in the Crunchfish press release from April 2021 when Crunchfish received the ISR for its initial patent application within Digital Cash. 

“The Trusted Application Protocol is a strategically important innovation for Crunchfish as our communication security protocol for mobile applications is based on TAP. Whereas the internet TCP/IP protocol provides survivability in the face of failures between networks, Crunchfish’s TAP provides integrity and robustness for communications between client applications and host servers as well as between applications in proximity”, says Crunchfish CEO and inventor Joachim Samuelsson.


For more information, please contact:

Joachim Samuelsson, CEO of Crunchfish AB

+46 708 46 47 88 


This information is such information as Crunchfish AB is obliged to make public pursuant to the EU Market Abuse Regulation. The information was submitted for publication, through the agency of the contact person set out above, at 15:00 CET on April 2nd, 2024.


Västra Hamnen Corporate Finance AB is the Certified Adviser. Email: Telephone +46 40 200 250.


About Crunchfish –

Crunchfish is a deep tech company developing a Digital Cash platform for Banks, Payment Services and CBDC implementations and Gesture Interaction technology for AR/VR and automotive industry. Crunchfish is listed on Nasdaq First North Growth Market since 2016, with headquarters in Malmö, Sweden and with a subsidiary in India.




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