How many patents does Nat Oilwell Dht Lp have in patentsdb?

Nat Oilwell Dht Lp is linked to 123 publications as assignee in our database.

What technology areas does Nat Oilwell Dht Lp patent most?

Top mapped technology areas by patent count: Fixed Constructions (122); Operations & Transport (26); Chemistry & Metallurgy (26).

In our data, assignee counts were 3 in 2024 and 2 in 2025 (lower year over year).

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

Nat Oilwell Dht Lp holds 123 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
Fixed Constructions	122
Operations & Transport	26
Chemistry & Metallurgy	26
Physics	6
Cross-Sectional Technologies	6
Mechanical Engineering	4

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

How many patents does Nat Oilwell Dht Lp have in patentsdb?: Nat Oilwell Dht Lp is linked to 123 publications as assignee in our database.
What technology areas does Nat Oilwell Dht Lp patent most?: Top mapped technology areas by patent count: Fixed Constructions (122); Operations & Transport (26); Chemistry & Metallurgy (26).
Is Nat Oilwell Dht Lp's patent activity growing?: In our data, assignee counts were 3 in 2024 and 2 in 2025 (lower year over year).
What are recent patents assigned to Nat Oilwell Dht Lp?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.