Patent AnalyticsExaminers
Rankings

Company or institution

ESS TECH, INC.

130 applicationsfiled 2013 to 2025

Allowance rate
68%
−7 pts vs the USPTO range 59% to 77%
Rejections before allowance
1.3
−0.3 vs the USPTO
Months to first action
21.8 mo
+3.2 vs the USPTO
Needed an RCE
16%
−11 pts vs the USPTO

Timeline

Applications by filing year: drag across the years to study a period

Allowed in green, abandoned in red, pending in grey. The figures above and the charts that can be recomputed by filing year follow the span you pick.

Compared with the office

Against every applicant before the USPTO

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Trend

Allowance by filing year

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Domains

Where the applications fall

CPC subclasses

H01M Batteries and fuel cells120 apps
H02J Circuit arrangements for supplying electric power5 apps
B01F 1 apps
B01J 1 apps
B23K 1 apps

Art units

172422 apps
172317 apps
172715 apps
172912 apps
175110 apps
OPAP10 apps

Who represents them

Law firms and agents on their applications

Bars show the share of decided applications that were allowed.

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Rejection fingerprint

What gets rejected, by statute

Share of parsed office actions raising each ground; blue is the USPTO.

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What works

Allowance by strategy used

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Interviews

Does an interview help?

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Applications

Every application in the record

ApplicationTitleFiledStatusRejectionsRCEsTo 1st action
19589264PROBE FOR IRON SALT BATTERY MANAGEMENT SYSTEM2026-05-20Pending00n/a
19588710METHOD FOR OPERATING AN IRON SALT BATTERY2026-05-19Pending00n/a
19169934COST-EFFICIENT HIGH ENERGY DENSITY REDOX FLOW BATTERY2025-04-03Pending00n/a
15677424Method and apparatus for adaptive signal processing2012-01-10Allowed1012.0 mo
15513004Composition and method for controlled release2015-02-11Abandoned4123.0 mo
15915059Distributed ledger transaction verification2018-03-12Allowed3020.0 mo
15828569Thermal management of battery assemblies2021-04-13Pending2117.0 mo
15327281Machine learning model for anomaly detection2012-05-14Allowed1014.0 mo
15427742Wireless power transfer coil arrangement2015-06-15Abandoned4125.0 mo
15929478Catalyst for selective hydrogenation2018-07-16Allowed3022.0 mo
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