Amar Kumar De — 6 Patents at Arcelormittal

Amar Kumar De has been granted 6 US patents while listed as an inventor at Arcelormittal. The first was granted in 2020 and the most recent in September 2025. Amar Kumar De ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Amar Kumar De in Munster, IN, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12421585	Railroad tank cars formed of low-carbon, high toughness, steel plates	Tanya Ros Yanez, Venkata Sai Ananth CHALLA, Sandeep Abotula	2025-09-23
12104232	Ultra-high strength hot-rolled steel with toughness and method of making same	Denis Hennessy, Chirag R. Mahimkar	2024-10-01
11802327	Ultra-high strength hot-rolled steel with toughness and method of making same	Denis Hennessy, Chirag R. Mahimkar	2023-10-31
11352683	Production of HIC-resistant pressure vessel grade plates using a low-carbon composition	—	2022-06-07
11060169	Ni—Al base material having optimized oxidation resistant at high temperatures and furnace transfer rolls made therefrom	Tanya Ros Yanez	2021-07-13
10829839	Production of HIC-resistant pressure vessel grade plates using a low-carbon composition	—	2020-11-10	$100,346,000

Amar Kumar De — 6 Patents

Issued Patents All Time

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