How many patents does Sumitomo Electric Optifrontier Co Ltd have in patentsdb?

Sumitomo Electric Optifrontier Co Ltd is linked to 129 publications as assignee in our database.

What technology areas does Sumitomo Electric Optifrontier Co Ltd patent most?

Top mapped technology areas by patent count: Physics (113); Operations & Transport (14); Electricity (11).

In our data, assignee counts were 36 in 2024 and 31 in 2025 (lower year over year).

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

Sumitomo Electric Optifrontier Co Ltd holds 129 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 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.

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

How many patents does Sumitomo Electric Optifrontier Co Ltd have in patentsdb?: Sumitomo Electric Optifrontier Co Ltd is linked to 129 publications as assignee in our database.
What technology areas does Sumitomo Electric Optifrontier Co Ltd patent most?: Top mapped technology areas by patent count: Physics (113); Operations & Transport (14); Electricity (11).
Is Sumitomo Electric Optifrontier Co Ltd's patent activity growing?: In our data, assignee counts were 36 in 2024 and 31 in 2025 (lower year over year).
What are recent patents assigned to Sumitomo Electric Optifrontier Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.