Overall rank by patents
#2,705
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView US Corporation
E Ink California, LLC
USPTO PatentsView assignee record — 143 granted patents across 35 technology areas, active 2015–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. 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).
143
Total patents granted
35
CPC technology areas
13.0
Avg claims per patent
-46%
5-year filing velocity
The verdict
E holds 143 US patents across 35 technology areas — rank #2,705 of 50,000 tracked assignees.
- #2,705
- of 50,000 US assignees by volume
- Top 14%
- by Innovation Score (50.1/100)
- 13.0
- avg claims per patent
- -46%
- filing velocity, last 5 yrs
Portfolio overview
E Ink California, LLC has been granted 143 US utility patents between 2015 and 2023, placing E Ink California, LLC at rank #2,705 across all assignees tracked by PlainPatent. This portfolio spans 35 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.0 claims per patent with primary concentration in 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). As a US Corporation, E Ink California, LLC is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 50.1/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Filing cadence tells the strategic story. Between 2020 and 2025 the company received 50 grants, compared with 93 in the 2015–2019 window — a -46% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.
Claim depth and technology breadth together indicate competitive posture. E Ink California, LLC's 13.0 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 35 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark E Ink California, LLC against peers pursuing similar technology classes.
How does E compare?
Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀
- Samsung
SAMSUNG ELECTRONICS CO., LTD.
106,890 patents
- International Bus…
International Business Machines Corporation
72,926 patents
- Canon 34,378
Canon Kabushiki Kaisha
34,378 patents
- LG 32,607
LG ELECTRONICS INC.
32,607 patents
- Taiwan Semiconduc… 31,041
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
31,041 patents
- Apple 30,560
Apple Inc.
30,560 patents
- Qualcomm Incorpor… 30,354
QUALCOMM Incorporated
30,354 patents
- Intel 27,498
Intel Corporation
27,498 patents
- E Ink California ◀ 143
E Ink California, LLC
143 patents
What this shows E holds 143 patents — placing it at rank #2,705 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
E's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
50 Top 14% higher than 86% of 50,000 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
| 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?
Top 15 of 35 technology areas
Patent Moat Analysis
Portfolio Volume Moderate
Tech Breadth Multi-domain
Claim Depth Standard
Velocity Declining
Frequently Asked Questions
How many patents does E Ink California, LLC hold?
E Ink California, LLC holds 143 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
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. The company has filed patents in 35 CPC subclasses total.
Is E Ink California, LLC's patent filing rate increasing or decreasing?
E Ink California, LLC's recent filing velocity is -46% compared to the prior five-year period. Filing 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 falls within the standard range, providing solid legal coverage.
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.
Learn More
Explore the patent dataset
G02F technology
E Ink California, LLC's primary CPC class — all holders and yearly trends
Top 50 patent holders
See where E Ink California, LLC ranks among the largest US patent assignees
All technology classes
Browse every CPC technology area by patent activity
How the score works
The four dimensions behind the Innovation Score
Related
Data sourced from USPTO PatentsView — official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial
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.
All federal data sources used on this page
- USPTO PatentsView — official U.S. Patent and Trademark Office bulk patent data. patentsview.org
- USPTO Patent Application Information Retrieval (PAIR) — application status and file history. uspto.gov/patents/pair
- USPTO Bulk Data Storage System — comprehensive patent text + claims dataset. bulkdata.uspto.gov
- USPTO CPC Classification — Cooperative Patent Classification scheme for technology categorization. uspto.gov/cpc
- SEC EDGAR — public filings cross-reference for assignee corporate entity matching. sec.gov/edgar
- WIPO PATENTSCOPE — international patent context (related international filings). wipo.int/patentscope
