Liwei Cai — 3 Patents at Amazon

Liwei Cai has been granted 3 US patents while listed as an inventor at Amazon. The first was granted in 2020 and the most recent in September 2024. Liwei Cai ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Liwei Cai in Xi'an, MA, CN.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12087305	Speech processing	Beiye Liu, Wael Hamza, Konstantine Arkoudas, Chengwei Su, Subendhu Rongali	2024-09-10	$381,332,000
11682400	Speech processing	Beiye Liu, Wael Hamza, Konstantine Arkoudas, Chengwei Su, Subendhu Rongali	2023-06-20	$847,499,000
D890134	Video processor	Jingguo Zong, Jingjing Zhou	2020-07-14

Liwei Cai — 3 Patents

Issued Patents All Time

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