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For the Inventor, By the Inventor

Charlottesville, VA, United States of America

Karl Roelofs

This inventor holds 25 USPTO granted patents and 9 published patent applications, primarily in Electronic Gaming. Top assignees: Aristocrat Technologies Australia Pty Limited, Aristocrat Technologies, Inc., Aristocrat Technologies, Inc. (Ati). Active years: 2012-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Karl Roelofs. Retrieved from https://idiyas.com/inventor/karl-roelofs

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

Calculating rank
USPTO Granted Patents = 25 

% Patents Active = 88.0

Average Co-Inventor Count = 2.1

ph-index = 3

Forward Citations = 53(Granted Patents)


Company Filing History:

goldMedal18 out of 1,774 
 
Aristocrat Technologies Australia Pty Limited
 patents
silverMedal4 out of 731 
 
Aristocrat Technologies, Inc.
 patents
bronzeMedal1 out of 60 
 
Aristocrat Technologies, Inc. (Ati)
 patents
4. 1 out of 2 
 
Gopop.tv, Inc.
 patents
5. 1 out of 123 
 
Video Gaming Technologies, Inc.
 patents

Years Active: 2012-2026

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Areas of Expertise:
Dynamic Reel Systems
Gameplay Features
Multiplier Enhancements
Free Spin Count-Up
Bingo Awards
Symbol Collectors
Wheel Feature Mode
Active Area Alternation
25 patents (USPTO):Explore Patents
1. 12770456 - Systems and methods for electronic gaming in which an active area alternates between sets of reels (2026-10-20),
2. 12658001 - Systems and methods for electronic gaming with progressively increasing outputs (2026-06-16),
3. 12394274 - Electronic gaming machine and system with dynamic reel wall deformation through metamorphic reel symbol expansion (2025-08-19),
4. 12361791 - Gaming machine and method for displaying a free spin count-up (2025-07-15),
5. 12340662 - Systems and methods for consolidating symbols in electronic gaming (2025-06-24),
6. 12257515 - Electronic gaming machine and system with a wheel feature mode dependent on base game outcomes (2025-03-25),
7. 12183168 - Gaming machine with enhanced respin feature (2024-12-31),
8. 12142106 - Gameplay method with connected image segments (2024-11-12),
9. 12087124 - Systems and methods for electronic gaming in which an active area alternates between sets of reels (2024-09-10),
10. 11948427 - Systems and methods for increasing a multiplier and providing a bingo award in association with a multiplier (2024-04-02),
11. 11804097 - Systems and methods for electronic gaming in which an active area alternates between sets of reels (2023-10-31),
12. 11801438 - Electronic gaming machine and system with a wheel feature mode dependent on base game outcomes (2023-10-31),
13. 11783664 - Gameplay method with connected image segments (2023-10-10),
14. 11521468 - Gaming machine with enhanced respin feature (2022-12-06),
15. 11482077 - Gaming machine and method for displaying a free spin count-up (2022-10-25),

Title: Karl Roelofs: Pioneering Inventor from Charlottesville

Introduction: Karl Roelofs is a distinguished inventor based in Charlottesville, VA, known for his groundbreaking contributions to various fields.

Latest Patents: Karl Roelofs holds several patents in the areas of renewable energy technologies, sustainable agriculture, and advanced materials.

Career Highlights: With a career spanning over two decades, Karl Roelofs has worked with leading research institutions and universities to develop innovative solutions for pressing global challenges.

Collaborations: Throughout his career, Karl Roelofs has collaborated with top companies, environmental organizations, and government agencies to bring his inventions to market and make a positive impact on society.

Conclusion: Karl Roelofs continues to inspire the next generation of inventors with his passion for innovation and commitment to creating a more sustainable future.

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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