USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Seiko Epson Corporation

USPTO PatentsView assignee record - 14,235 granted patents across 328 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B41J (TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

14,235

Total patents granted

328

CPC technology areas

11.1

Avg claims per patent

-9%

5-year filing velocity

The verdict

Seiko ranks #22 of 50,000 US assignees, with 14,235 patents across 328 technology areas.

#22
of 50,000 US assignees by volume: Top 0.1%
by Innovation Score (70.5/100): 11.1
avg claims per patent: -9%
filing velocity, last 5 yrs

Portfolio overview

Seiko Epson Corporation has been granted 14,235 US utility patents between 2015 and 2025, placing Seiko Epson Corporation at rank #22 across all assignees tracked by PlainPatent. This portfolio spans 328 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.1 claims per patent with primary concentration in B41J (TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS). As a Foreign Corporation, Seiko Epson Corporation is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Seiko sits between Micron Technology, Inc. (15,200 patents, rank #18) and The Boeing Company (11,922 patents, rank #26) - the closest US assignees by grant volume. The composite Innovation Score of 70.5/100 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 6,795 grants, compared with 7,440 in the 2015–2019 window, a -9% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign 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. Seiko Epson Corporation's 11.1 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Seiko Epson Corporation against peers pursuing similar technology classes.

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.

Seiko's Innovation Score vs. every tracked assignee

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

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

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%
2025	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

Patent Moat Analysis

Portfolio Volume Deep

Tech Breadth Diversified

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#22

Across all tracked assignees

Innovation Score

70.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Seiko Epson Corporation hold?

Seiko Epson Corporation holds 14,235 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

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. The company has filed patents in 328 CPC subclasses total.

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

Seiko Epson Corporation's recent filing velocity is -9% compared to the prior five-year period. Filing 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 relatively simple claim structure, typical for focused inventions.

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.

How to use this portfolio

Seiko's 14,235 grants land it in the top 0.1% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Seiko ranks #22 of 50,000. Top 50 holders
Most of this portfolio concentrates in B41J - see who else leads that technology area. B41J leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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.

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.