公开(公告)号：US20250166110A1

公开(公告)日：2025-05-22

申请号：US18726816

申请日：2022-12-23

Applicant: Purdue Research Foundation

Inventor： Young Kim ,  Hee Jae Jeon ,  Jungwoo Leem ,  Sang Mok Park ,  Yuhyun Ji

IPC: G06T1/00 ,  A23P20/15 ,  A23P20/25 ,  B41M3/10 ,  B41M5/00 ,  H04N1/32

Abstract: A method of ascertaining identity, verification, or authentication of a product is disclosed which includes embedding a predetermined watermark on a host image, thereby generating an edible watermarked image, printing the watermarked image using edible ink on an attack-resistant edible substrate, affixing the printed substrate onto the product, providing a color reference chart along with the watermarked image, obtaining an image of the watermarked image from the product, establishing correspondence between the watermarked image and the color reference chart, correcting the obtained image based on the established correspondence, extracting the embedded predetermined watermark from the corrected watermarked image, and determining identity, verification, and authentication of the product by analyzing the extracted predetermined watermark of the watermarked image.

公开(公告)号：US20210346531A1

公开(公告)日：2021-11-11

申请号：US17314908

申请日：2021-05-07

Applicant: Purdue Research Foundation

Inventor： Young L Kim ,  Jung Woo Leem ,  Hee-Jae Jeon ,  Yuhyun Ji

IPC: A61L2/00 ,  A61L9/14 ,  A61L9/18

Abstract: A whole-body or whole-room voluminous antiviral and antibacterial airborne disinfection system is disclosed which includes a sterilization chamber, including a nozzle disposed in the sterilization chamber, a tank disposed outside the sterilization chamber, the tank is adapted to hold a photosensitizer fluid of edible food dyes, a light source within the sterilization chamber adapted to flood the sterilization chamber with light; and a nozzle adapted to release the photosensitizer fluid aerosols and generate reactive oxygen species in a fog-like dispersion.