Ess Technology Inc patents

Ess Technology Inc holds 251 patents in our database, with recent filings and technology areas summarized below.

Company patent statistics
MetricValue
Total patents251
Recent patents90
First publicationJan 1, 2015
Latest publicationAug 7, 2025

Filing trend

Year-over-year patent counts for this assignee.

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
201513
201614
201720
201813
201911
202019
202128
202222
202353
202444
202514
Browse patents by year
YearPatents
201513
201614
201720
201813
201911
202019
202128
202222
202353
202444
202514

Recent patents

Latest publications where this party is an assignee.

Notable patents

Representative or frequently cited publications from precomputed assignee stats.

Top CPC classifications

Most common classification codes in this portfolio.

Top CPC codes by patent count
CPCPatents
H01M8/188189
Y02E60/50187
H01M8/0418672
H01M8/069337
H01M8/2036

Technology areas

Mapped technology topics for this assignee.

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Frequently asked questions

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

How many patents does Ess Technology Inc have in patentsdb?
Ess Technology Inc is linked to 251 publications as assignee in our database.
What technology areas does Ess Technology Inc patent most?
Top mapped technology areas by patent count: Electricity (244); Cross-Sectional Technologies (189); Physics (24).
Is Ess Technology Inc's patent activity growing?
In our data, assignee counts were 44 in 2024 and 14 in 2025 (lower year over year).
What are recent patents assigned to Ess Technology Inc?
See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.