David Marsh has been granted 11 US patents while listed as an inventor at Aristocrat Technologies . The first was granted in 1990 and the most recent in October 2025. David Marsh ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list David Marsh in Charlottesville, VA, US.
Patents per Year Patents granted per year, 1990 to 2025 Bar chart with a peak of 7 patents in 2025. peak 7 1990: 1 patents 1990 2004: 2 patents 2004 2024: 1 patents 2024 2025: 7 patents 2025
Issued Patents All Time
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Showing 1–11 of 11 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12450985 Systems and methods for a free spin count-up and subsequent count-down Daniel Marston 2025-10-21
D1094415 Display screen with a graphical user interface Daniel Marston , Brian Prince 2025-09-23
12394274 Electronic gaming machine and system with dynamic reel wall deformation through metamorphic reel symbol expansion Karl Roelofs 2025-08-19
12374193 Electronic gaming systems and methods for presenting a bonus game with enhanced characteristics Kevin Walsh , Jeffrey Uss , Daniel Marston , Allon G. Englman 2025-07-29
12367742 Systems and methods for a free spin count-up and subsequent count-down Daniel Marston 2025-07-22
12340662 Systems and methods for consolidating symbols in electronic gaming Karl Roelofs 2025-06-24
12257515 Electronic gaming machine and system with a wheel feature mode dependent on base game outcomes Karl Roelofs , Ryan North 2025-03-25
12027016 Systems and methods for a free spin count-up and subsequent count-down Daniel Marston 2024-07-02
6832208 Invoice entry Charles Franklin Berry , Cindy L. Crowningshield 2004-12-14
$7,399,000
6763462 E-mail virus detection utility — 2004-07-13
$2,280,000
D309521 Ravioli John T. Eureka , Linda K. Law 1990-07-31
