Ray Zhang — 9 Patents at Dropbox

Ray Zhang has been granted 9 US patents while listed as an inventor at Dropbox. The first was granted in 2019 and the most recent in December 2025. Ray Zhang ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Ray Zhang in San Jose, CA, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12505825	Spontaneous text to speech (TTS) synthesis	Jian Luan, Yahuan Cong	2025-12-23
12469295	Method and device for acquiring information, and system for detecting attention degree	Mingjun Nie, Jingjing Wang, Jiangxu Wu, Mingyin HU, Shaojun MA	2025-11-11
12461628	Liquid crystal writing board and method for repairing the same	Xiangdong Ma, Ruifang Du, Haijiao Qian, Hung-En Huang, Chaochao Yang	2025-11-04
12339965	Malware detection and content item recovery	Ishita Arora, Anton Mityagin, Sam Keller, Stacey Sern	2025-06-24
12014157	Intelligent generation of code for imputation of missing data in a machine learning dataset	Pu Li, Pranay Tiwari, Manish Worlikar, Alain Wilkinson	2024-06-18
11580221	Malware detection and content item recovery	Ishita Arora, Anton Mityagin, Sam Keller, Stacey Sern	2023-02-14	$18,490,000
10878089	Identifying malware based on content item identifiers	—	2020-12-29	$18,665,000
10562642	Prediction of vehicle maneuvers based on signal characteristics	Guoqing Wang, Ruy C. Brandao, Rong Zhang, Zhong Chen	2020-02-18	$19,384,000
10503900	Identifying malware based on content item identifiers	—	2019-12-10	$6,001,000

Ray Zhang — 9 Patents

Issued Patents All Time

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