Where does Seiko Epson Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Seiko Epson Corporation ranks #22 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 Seiko Epson Corporation hold?

Seiko Epson Corporation holds 14,235 US utility patents granted between 2015 and 2025, spanning 328 technology areas.

What is Seiko Epson Corporation's Innovation Score?

Seiko Epson Corporation has an Innovation Score of 70.5 out of 100 (top 1% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Seiko Epson Corporation's patent grant rate increasing or decreasing?

Seiko Epson Corporation's recent grant velocity is -19% 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 Seiko Epson Corporation's patents?

Seiko Epson Corporation's patents average 11.1 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 Seiko Epson Corporation 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 Foreign Corporation

Seiko Epson Corporation

Q: What technology areas does Seiko Epson Corporation focus on?

Seiko Epson Corporation's top technology area is B41J (TYPEWRITERS; Selective Printing Mechanisms, i.e. Mechanisms Printing Otherwise Than From A FORME; Correction OF Typographical Errors) with 5,146 patents, ranking #1 of 598 assignees active in that subclass. Grants appear in 328 CPC subclasses total.

USPTO PatentsView assignee record - 14,235 granted patents across 328 technology areas, recorded in grant years 2015–2025. 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: B41J (TYPEWRITERS; Selective Printing Mechanisms, i.e. Mechanisms Printing Otherwise Than From A FORME; Correction OF Typographical Errors).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Seiko ranks #22 of 49,997 US assignees by granted-patent volume, with 14,235 patents across 328 technology areas.

#22
of 49,997 US assignees by volume: Top 1%
by Innovation Score (70.5/100): 11.1
avg claims per patent: -19%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R22 · Foreign Corporation #22 · 14,235 grants

GRANTS-MEGA · TOP-DECILE · CLEAR-GAP · CPC-BROAD · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MEGA 14K grants
TOP-DECILE #22/49,997
CLEAR-GAP General Electric
CPC-BROAD B41J · 328 areas
INNOV-STRONG 70.5/100
CLAIMS-PAR 11.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -19% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: General Electric Company (±201 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.

How Seiko’s 70.5 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 33.0 pts (47%) Velocity 5.8 pts (8%) Breadth 25.0 pts (36%) Claim depth 6.6 pts (9%)

Qualcomm Incorporated · highest

85
Fujifilm · near

71
Toyota Motor… · near

71
Commscope · near

71
Seiko Epson · this assignee

70
Unilin BV · near

70
3D Lighting… · lowest

7

What this shows Seiko's Innovation Score is 70.5/100 (top 1% 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.

Does more volume mean deeper claims for Seiko?

Each dot is one of Seiko’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Seiko’s own 11.1 claims/patent is at or below the 12.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Seiko vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

How Seiko's grant cadence moved

Between 2020–2024, Seiko Epson Corporation received 6,019 grants versus 7,440 in 2015–2019 (-19% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2016 at 1,676 grants and bottomed in 2024 at 1,034. Lead class B41J accounts for 36.2% of the portfolio across 328 subclasses. Volume neighbours: Micron Technology, Inc. (#18) and The Boeing Company (#26).

Seiko's three-year grant acceleration

From 2019–2021 to 2022–2024, Seiko Epson Corporation moved from 3,949 to 3,438 grants (0.87x 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 #1,591. See the growth leaderboard.

Micron Technology

15,200
Mitsubishi Electr…

15,053
Hyundai Motor

15,033
General Electric

14,436
Seiko Epson ◀

14,235
Panasonic Intelle…

13,148
Toshiba

12,848
Honda Motor

12,454
The Boeing

11,922

What this shows Seiko holds 14,235 patents at rank #22, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Seiko

By rank, the assignees closest to #22 in granted patent volume.

Leaders in B41J (Typewriters)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Seiko, neither rank-band nor same-CPC leaders (those blocks stay above). In B41J (Typewriters), Seiko ranks #1 of 598 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (70 here).

Unilin BV 70 Commscope Technologies LLC 71 Toyota Motor Engineering & Manufacturing North America, Inc. 71 Fujifilm Corporation 71

Similar claim depth

Nearest assignees by average claims per patent (11.1 here).

Shin-etsu Chemical Co., Ltd. 11.1 avg Universite Paul SABATIER—TOULOUSE III 11.1 avg Canon Denshi Kabushiki Kaisha 11.1 avg Jing-jin Electric Technologies Co., Ltd. 11.1 avg

Seiko's Innovation Score vs. every tracked assignee

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

70 Top 1% higher than 99% 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 · 2015–2025

Grants by year

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

View data table

Seiko Epson Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1,636	11.5%
2016	1,676	11.8%
2017	1,438	10.1%
2018	1,322	9.3%
2019	1,368	9.6%
2020	1,340	9.4%
2021	1,241	8.7%
2022	1,252	8.8%
2023	1,152	8.1%
2024	1,034	7.3%
2025partial year	776	5.5%

Which technologies does Seiko Epson Corporation patent most?

B41J - TYPEWRITERS; Selective Printing Mechanisms, i.e. Mechanisms Printing Otherwise Than From A FORME; Correction OF Typographical Errors 5,146

H04N - Pictorial Communication, e.g. Television 2,058

G06F - Electric Digital Data Processing 1,444

G02B - Optical Elements, Systems OR Apparatus 1,332

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 1,103

G09G - Arrangements OR Circuits FOR Control OF Indicating Devices Using Static Means TO Present Variable Information 883

B65H - Handling Thin OR Filamentary Material, e.g. Sheets, Webs, Cables 748

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 608

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 578

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 496

H10N - Electric Solid-state Devices NOT Otherwise Provided FOR 488

G06K - Graphical Data Reading ; Presentation OF DATA; Record CARRIERS; Handling Record Carriers 405

H03B - Generation OF Oscillations, Directly OR BY Frequency-changing, BY Circuits Employing Active Elements Which Operate IN A Non-switching MANNER; Generation OF Noise BY Such Circuits 394

G06T - Image Data Processing OR Generation, IN General 389

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 386

Top 15 of 328 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Seiko Epson Corporation's patent record in context - here's where to go next.

Seiko Epson Corporation's lead technology class is B41J (TYPEWRITERS; Selective Printing Mechanisms, i.e. Mechanisms Printing Otherwise Than From A FORME; Correction OF Typographical Errors), 36.2% of its portfolio - see every assignee active in that class. Explore B41J
Ranked #22 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Seiko Epson Corporation against Micron Technology, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 70.5/100 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.