How many patents does Philoptics Co Ltd have in patentsdb?

Philoptics Co Ltd is linked to 7 publications as assignee in our database.

What technology areas does Philoptics Co Ltd patent most?

Top mapped technology areas by patent count: Operations & Transport (7); Chemistry & Metallurgy (7); Electricity (7).

In our data, assignee counts were 1 in 2022 and 2 in 2025 (higher year over year).

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

Philoptics Co Ltd holds 7 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.

Mapped technology topics for this assignee.

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

How many patents does Philoptics Co Ltd have in patentsdb?: Philoptics Co Ltd is linked to 7 publications as assignee in our database.
What technology areas does Philoptics Co Ltd patent most?: Top mapped technology areas by patent count: Operations & Transport (7); Chemistry & Metallurgy (7); Electricity (7).
Is Philoptics Co Ltd's patent activity growing?: In our data, assignee counts were 1 in 2022 and 2 in 2025 (higher year over year).
What are recent patents assigned to Philoptics Co Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.