How many patents does Hindustan Petroleum Corp Ltd have in patentsdb?

Hindustan Petroleum Corp Ltd is linked to 154 publications as assignee in our database.

What technology areas does Hindustan Petroleum Corp Ltd patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (142); Operations & Transport (96); Cross-Sectional Technologies (19).

In our data, assignee counts were 21 in 2024 and 30 in 2025 (higher year over year).

See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.

Hindustan Petroleum Corp Ltd holds 154 patents in our database, with recent filings and technology areas summarized below.

Year-over-year patent counts for this assignee.

Filing activity over the last five years is growing.

Latest publications where this party is an assignee.

Representative or frequently cited publications from precomputed assignee stats.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Chemistry & Metallurgy	142
Operations & Transport	96
Cross-Sectional Technologies	19
Fixed Constructions	10
Mechanical Engineering	5
Electricity	3

Answers are generated from the same data shown on this page.

How many patents does Hindustan Petroleum Corp Ltd have in patentsdb?: Hindustan Petroleum Corp Ltd is linked to 154 publications as assignee in our database.
What technology areas does Hindustan Petroleum Corp Ltd patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (142); Operations & Transport (96); Cross-Sectional Technologies (19).
Is Hindustan Petroleum Corp Ltd's patent activity growing?: In our data, assignee counts were 21 in 2024 and 30 in 2025 (higher year over year).
What are recent patents assigned to Hindustan Petroleum Corp Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.