The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2026
Filed:
Aug. 28, 2023
The Hong Kong Research Institute of Textiles and Apparel Limited, Kowloon, HK;
Alex Chan, Kowloon, HK;
Ray Chun Wai Cheung, Kowloon, HK;
Lik Ki Mui, Kowloon, HK;
Hau To Wong, Kowloon, HK;
Abstract
An integrative approach combines a process of adsorption and ozonation which are used for removing the indigo dye from textile wastewater and the regeneration of adsorbent materials. Metal oxide modified adsorbents are efficient dye adsorbent materials for indigo dye wastewater and are used have been developed for adsorption process and regenerated by ozonation process. Upon the regeneration process, the adsorption capacity has been recovered. The synergistic effect of adsorption and ozonation benefit for the efficient dye removal from wastewater and the adsorbent regeneration achieved in an environmentally friendly and cost effective way.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile