How many patents does Ngk Spark Plug Co have in patentsdb?

Ngk Spark Plug Co is linked to 1,644 publications as assignee in our database.

What technology areas does Ngk Spark Plug Co patent most?

Top mapped technology areas by patent count: Electricity (1,017); Physics (638); Cross-Sectional Technologies (307).

In our data, assignee counts were 33 in 2024 and 16 in 2025 (lower year over year).

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

Ngk Spark Plug Co holds 1,644 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
Electricity	1,017
Physics	638
Cross-Sectional Technologies	307
Mechanical Engineering	298
Chemistry & Metallurgy	271
Operations & Transport	232
Human Necessities	30

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

How many patents does Ngk Spark Plug Co have in patentsdb?: Ngk Spark Plug Co is linked to 1,644 publications as assignee in our database.
What technology areas does Ngk Spark Plug Co patent most?: Top mapped technology areas by patent count: Electricity (1,017); Physics (638); Cross-Sectional Technologies (307).
Is Ngk Spark Plug Co's patent activity growing?: In our data, assignee counts were 33 in 2024 and 16 in 2025 (lower year over year).
What are recent patents assigned to Ngk Spark Plug Co?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.