How many patents does Jeol Ltd have in patentsdb?

Jeol Ltd is linked to 844 publications as assignee in our database.

What technology areas does Jeol Ltd patent most?

Top mapped technology areas by patent count: Electricity (532); Physics (483); Operations & Transport (103).

In our data, assignee counts were 57 in 2024 and 83 in 2025 (higher year over year).

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

Jeol Ltd holds 844 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.

Most common classification codes in this portfolio.

Mapped technology topics for this assignee.

Company technology slices
Technology	Patents
Electricity	532
Physics	483
Operations & Transport	103
Cross-Sectional Technologies	63
Chemistry & Metallurgy	27
Mechanical Engineering	13
Human Necessities	4

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

How many patents does Jeol Ltd have in patentsdb?: Jeol Ltd is linked to 844 publications as assignee in our database.
What technology areas does Jeol Ltd patent most?: Top mapped technology areas by patent count: Electricity (532); Physics (483); Operations & Transport (103).
Is Jeol Ltd's patent activity growing?: In our data, assignee counts were 57 in 2024 and 83 in 2025 (higher year over year).
What are recent patents assigned to Jeol Ltd?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.