A related patent application (US20190291038A1) naming Jeri Ellsworth as inventor was published on September 24, 2019, detailing surface-based object tracking methods.
On September 24, 2019, the U.S. patent application "System and method to identify and track objects on a surface" (US20190291038A1), naming Jeri Ellsworth as an inventor, was officially published.
This publication represents a continuation or related filing to her earlier 2004 patent work on the same subject, reflecting an extended, multi-decade engagement with the technical challenge of surface-based object tracking. By 2019, augmented reality tabletop gaming — the exact application area this technology serves — had become commercially relevant, notably through Ellsworth's own venture, Tilt Five, which built consumer AR tabletop gaming hardware.
The publication of this patent application in 2019 coincides with the period when Ellsworth was actively developing and promoting Tilt Five's AR glasses and tabletop gaming system, suggesting that this refined patent filing was directly tied to her commercial product development at the time.
The persistence of this research area across a fifteen-year span — from initial 2004 filings through 2019 publication — illustrates the long technical arc of Ellsworth's career: an idea conceived years ahead of market readiness, refined and re-filed as the surrounding technology and consumer market matured, eventually informing a real shipping product category in consumer augmented reality entertainment.