How many patents does United Microelectronics Corp have in patentsdb?

United Microelectronics Corp is linked to 6,640 publications as assignee in our database.

What technology areas does United Microelectronics Corp patent most?

Top mapped technology areas by patent count: Electricity (6,323); Physics (1,104); Operations & Transport (171).

In our data, assignee counts were 618 in 2024 and 689 in 2025 (higher year over year).

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

United Microelectronics Corp holds 6,640 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.

Most common classification codes in this portfolio.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Electricity	6,323
Physics	1,104
Operations & Transport	171
Cross-Sectional Technologies	52
Chemistry & Metallurgy	45
Mechanical Engineering	9

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

How many patents does United Microelectronics Corp have in patentsdb?: United Microelectronics Corp is linked to 6,640 publications as assignee in our database.
What technology areas does United Microelectronics Corp patent most?: Top mapped technology areas by patent count: Electricity (6,323); Physics (1,104); Operations & Transport (171).
Is United Microelectronics Corp's patent activity growing?: In our data, assignee counts were 618 in 2024 and 689 in 2025 (higher year over year).
What are recent patents assigned to United Microelectronics Corp?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.