Where does E Ink California, LLC rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), E Ink California, LLC ranks #2,705 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does E Ink California, LLC hold?

E Ink California, LLC holds 143 US utility patents granted between 2015 and 2023, spanning 35 technology areas.

What is E Ink California, LLC's Innovation Score?

E Ink California, LLC has an Innovation Score of 50.1 out of 100 (top 14% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is E Ink California, LLC's patent grant rate increasing or decreasing?

E Ink California, LLC's recent grant velocity is -46% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for E Ink California, LLC's patents?

E Ink California, LLC's patents average 13.0 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the E Ink California, LLC patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView US Corporation

E Ink California, LLC

Q: What technology areas does E Ink California, LLC focus on?

E Ink California, LLC's top technology area is G02F (Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters) with 114 patents. Grants appear in 35 CPC subclasses total.

USPTO PatentsView assignee record - 143 granted patents across 35 technology areas, recorded in grant years 2015–2023. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: G02F (Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optica).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, E ranks #2,705 of 49,997 tracked US assignees by granted-patent volume, with 143 patents across 35 technology areas.

#2,705
of 49,997 US assignees by volume: Top 14%
by Innovation Score (50.1/100): 13.0
avg claims per patent: -46%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2705 · US Corporation #2,705 · 143 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MID 143 grants
TOP-DECILE #2,705/49,997
PHOTO-FINISH Atotech Deutschland…
CPC-FOCUS G02F · 35 areas
INNOV-PAR 50.1/100
CLAIMS-RICH 13.0 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -46% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Atotech Deutschland GmbH & Co. KG (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

Qualcomm Incorporated · highest

85
Dionex · near

50
E Ink California · this assignee

50
Oiles · near

50
Schreiner Group & KG · near

50
Spts · near

50
3D Lighting… · lowest

7

What this shows E's Innovation Score is 50.1/100 (top 14% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Where E's grants concentrate

E Ink California, LLC is a focused PatentsView assignee: 35 CPC subclasses with 79.7% of grants classified under G02F (Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optica). Peak complete grant year is 2016 (25 grants) versus a trough of 10 in 2021. By volume, E sits between Terrapower, LLC and Heraeus Medical GmbH.

E's three-year grant acceleration

From 2019–2021 to 2022–2024, E Ink California, LLC moved from 40 to 25 grants (0.63x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #2,377. See the growth leaderboard.

Terrapower

144
Velos Media

144
Atotech Deutschla…

143
Contemporary Visi…

143
Giga-byte Technol…

143
HAI Robotics

143
Hutchinson

143
Heraeus Medical

143
E Ink California ◀

143

What this shows E holds 143 patents at rank #2,705, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near E

By rank, the assignees closest to #2,705 in granted patent volume.

Leaders in G02F (Optical Devices OR Arrangements FOR THE Control OF Light…)

Other assignees with the most granted patents in E's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for E, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (50 here).

Oiles Corporation 50 Dionex Corporation 50 Spts Technologies Limited 50 Schreiner Group GmbH & Co. KG 50

Similar claim depth

Nearest assignees by average claims per patent (13.0 here).

Hill's Pet Nutrition, Inc. 13.0 avg United States of America as represented by the Secretary of the Air Force 13.0 avg Contec, LLC 13.0 avg Idemia Identity & Security France 13.0 avg

E's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

50 Top 14% higher than 86% of 49,997 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2015–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

E Ink California, LLC patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	21	14.7%
2016	25	17.5%
2017	15	10.5%
2018	17	11.9%
2019	15	10.5%
2020	15	10.5%
2021	10	7.0%
2022	14	9.8%
2023	11	7.7%

Which technologies does E Ink California, LLC patent most?

G02F - Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optical Logic ELEMENTS; Optical ANALOGUE/DIGITAL Converters 114

G09G - Arrangements OR Circuits FOR Control OF Indicating Devices Using Static Means TO Present Variable Information 77

G02B - Optical Elements, Systems OR Apparatus 15

C09C - Treatment OF Inorganic Materials, Other Than Fibrous Fillers, TO Enhance Their Pigmenting OR Filling Properties ; Preparation OF Carbon Black ; ; Preparation OF Inorganic Materials Which ARE NO Single Chemical Compounds AND Which ARE Mainly Used AS Pigments OR Fillers 7

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 6

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 5

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 4

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 4

B42D - BOOKS; Book COVERS; Loose LEAVES; Printed Matter Characterised BY Identification OR Security FEATURES; Printed Matter OF Special Format OR Style NOT Otherwise Provided FOR; Devices FOR USE Therewith AND NOT Otherwise Provided FOR; Movable-strip Writing OR Reading Apparatus 4

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 3

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 3

G09F - DISPLAYING; ADVERTISING; SIGNS; Labels OR NAME-PLATES; Seals 3

A61M - Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor 2

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 2

C08L - Compositions OF Macromolecular Compounds 2

Top 15 of 35 technology areas

Where it ranks

Overall rank by patents

#2,705

of 49,997 tracked assignees

Innovation Score

50.1 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

E Ink California, LLC's patent record in context - here's where to go next.

E Ink California, LLC's lead technology class is G02F (Optical Devices OR Arrangements FOR THE Control OF Light BY Modification OF THE Optical Properties OF THE Media OF THE Elements Involved THEREIN; Non-linear OPTICS; Frequency-changing OF LIGHT; Optica), 79.7% of its portfolio - see every assignee active in that class. Explore G02F
Ranked #2,705 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare E Ink California, LLC against Terrapower, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 50.1/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.