How many patents does Yamamoto Chemicals Inc have in patentsdb?

Yamamoto Chemicals Inc is linked to 11 publications as assignee in our database.

What technology areas does Yamamoto Chemicals Inc patent most?

Top mapped technology areas by patent count: Chemistry & Metallurgy (11); Physics (7); Operations & Transport (4).

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

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

Yamamoto Chemicals Inc holds 11 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 stable.

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 Yamamoto Chemicals Inc have in patentsdb?: Yamamoto Chemicals Inc is linked to 11 publications as assignee in our database.
What technology areas does Yamamoto Chemicals Inc patent most?: Top mapped technology areas by patent count: Chemistry & Metallurgy (11); Physics (7); Operations & Transport (4).
Is Yamamoto Chemicals Inc's patent activity growing?: In our data, assignee counts were 1 in 2022 and 1 in 2025 (similar year over year).
What are recent patents assigned to Yamamoto Chemicals Inc?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.