How many patents does E Ink Holdings Inc have in patentsdb?

E Ink Holdings Inc is linked to 855 publications as assignee in our database.

What technology areas does E Ink Holdings Inc patent most?

Top mapped technology areas by patent count: Physics (712); Electricity (331); Operations & Transport (34).

In our data, assignee counts were 82 in 2024 and 71 in 2025 (lower year over year).

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

E Ink Holdings Inc holds 855 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
Physics	712
Electricity	331
Operations & Transport	34
Mechanical Engineering	26
Cross-Sectional Technologies	22
Chemistry & Metallurgy	12
Fixed Constructions	2
Human Necessities	2
Textiles & Paper	1

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

How many patents does E Ink Holdings Inc have in patentsdb?: E Ink Holdings Inc is linked to 855 publications as assignee in our database.
What technology areas does E Ink Holdings Inc patent most?: Top mapped technology areas by patent count: Physics (712); Electricity (331); Operations & Transport (34).
Is E Ink Holdings Inc's patent activity growing?: In our data, assignee counts were 82 in 2024 and 71 in 2025 (lower year over year).
What are recent patents assigned to E Ink Holdings Inc?: See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.