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For the Inventor, By the Inventor

Newton, MA, United States of America

Stefan K Karaivanov

This inventor holds 6 USPTO granted patents and 1 published patent application. Top assignee: Worldpay Limited. Active years: 2020-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stefan K Karaivanov. Retrieved from https://idiyas.com/inventor/stefan-k-karaivanov

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

USPTO Granted Patents = 6 

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 1

Forward Citations = 9(Granted Patents)


Location History:

  • Boston, MA (US) (2021)
  • Newton, MA (US) (2020 - 2023)

Company Filing History:

goldMedal6 out of 473 
 
Worldpay Limited
 patents

Years Active: 2020-2024

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6 patents (USPTO):Explore Patents
1. 12165146 - System and method for managing merchant terms and conditions applicable to a payment transaction (2024-12-10),
2. 11699149 - Systems and methods for substitute low-value tokens in secure network transactions (2023-07-11),
3. 11238446 - Systems and methods for substitute controlled-use tokens in secure network transactions (2022-02-01),
4. 11023888 - Systems and methods for management and recycling of payment transactions (2021-06-01),
5. 10997593 - System and method for managing merchant terms and conditions applicable to a payment transaction (2021-05-04),
6. 10546292 - Systems and methods for substitute low-value tokens in secure network transactions (2020-01-28),

Title: Innovations of Stefan K Karaivanov

Introduction

Stefan K Karaivanov is a notable inventor based in Newton, MA (US). He has made significant contributions to the field of payment transaction systems, holding a total of 6 patents. His work focuses on enhancing the efficiency and security of financial transactions.

Latest Patents

One of his latest patents is titled "System and method for managing merchant terms and conditions applicable to a payment transaction." This invention provides systems and methods for managing a merchant's set of terms and conditions that are applicable to a payment vehicle transaction. When a chargeback for the payment vehicle transaction is initiated and disputed, the applicable set of terms and conditions can be transmitted to an issuer financial institution on behalf of the merchant as part of the dispute process. Another significant patent is "Systems and methods for substitute low-value tokens in secure network transactions." This invention discloses methods and systems for enabling the creation of substitute low-value tokens, which includes providing software content to a content delivery network. This software content is configured to enable the user browser to create a substitute low-value token if a token service is unavailable.

Career Highlights

Stefan K Karaivanov is currently employed at Worldpay Limited, a leading payment processing company. His role involves developing innovative solutions that streamline payment processes and enhance security measures for transactions.

Collaborations

Stefan has collaborated with notable professionals in his field, including Thomas Edward Rafferty and Fengzhong Wang. Their combined expertise contributes to the advancement of payment technologies.

Conclusion

Stefan K Karaivanov's contributions to payment transaction systems through his patents and work at Worldpay Limited highlight his role as an influential inventor in the financial technology sector. His innovations continue to shape the future of secure payment processing.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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