How many patents does Haldor Topsoe As have in patentsdb?

Haldor Topsoe As is linked to 676 publications as assignee in our database.

What technology areas does Haldor Topsoe As patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (539); Operations & Transport (468); Cross-Sectional Technologies (387).

In our data, assignee counts were 18 in 2024 and 31 in 2025 (higher year over year).

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

Haldor Topsoe As holds 676 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 rapidly declining.

Latest publications where this party is an assignee.

Representative or frequently cited publications from precomputed assignee stats.

Most common classification codes in this portfolio.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Chemistry & Metallurgy	539
Operations & Transport	468
Cross-Sectional Technologies	387
Mechanical Engineering	103
Electricity	56
Human Necessities	8
Fixed Constructions	3
Physics	2
Textiles & Paper	2

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

How many patents does Haldor Topsoe As have in patentsdb?: Haldor Topsoe As is linked to 676 publications as assignee in our database.
What technology areas does Haldor Topsoe As patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (539); Operations & Transport (468); Cross-Sectional Technologies (387).
Is Haldor Topsoe As's patent activity growing?: In our data, assignee counts were 18 in 2024 and 31 in 2025 (higher year over year).
What are recent patents assigned to Haldor Topsoe As?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.