Where does Dong-a Pencil Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dong-a Pencil Co., Ltd. ranks #16,742 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 Dong-a Pencil Co., Ltd. hold?

Dong-a Pencil Co., Ltd. holds 17 US utility patents granted between 2017 and 2024, spanning 5 technology areas.

What is Dong-a Pencil Co., Ltd.'s Innovation Score?

Dong-a Pencil Co., Ltd. has an Innovation Score of 28.6 out of 100 (28th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Dong-a Pencil Co., Ltd. focus on?

Dong-a Pencil Co., Ltd.'s top technology area is B43K (Implements FOR Writing OR Drawing) with 7 patents. Grants appear in 5 CPC subclasses total.

Is Dong-a Pencil Co., Ltd.'s patent grant rate increasing or decreasing?

Dong-a Pencil Co., Ltd.'s recent grant velocity is -30% 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 Dong-a Pencil Co., Ltd.'s patents?

Dong-a Pencil Co., Ltd.'s patents average 3.9 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 Dong-a Pencil Co., Ltd. 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

Dong-a Pencil Co., Ltd.

USPTO PatentsView assignee record - 17 granted patents across 5 technology areas, recorded in grant years 2017–2024. 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: B43K (Implements FOR Writing OR Drawing).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Dong-a ranks #16,742 of 49,997 tracked US assignees by granted-patent volume, with 17 patents across 5 technology areas.

#16,742
of 49,997 US assignees by volume: 28th percentile
by Innovation Score (28.6/100): 3.9
avg claims per patent: -30%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16742 · Foreign Corporation #16,742 · 17 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 17 grants
MID-PACK #16,742/49,997
PHOTO-FINISH DHK Storage
CPC-NARROW B43K · 5 areas
INNOV-THIN 28.6/100
CLAIMS-SPARSE 3.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -30% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: DHK Storage, Inc. (±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
Dong-a Pencil · this assignee

29
3D Lighting… · lowest

7

What this shows Dong-a's Innovation Score is 28.6/100 (28th percentile 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 Dong-a's grants concentrate

Dong-a Pencil Co., Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 41.2% of grants classified under B43K (Implements FOR Writing OR Drawing). Peak complete grant year is 2018 (5 grants) versus a trough of 2 in 2019. By volume, Dong-a sits between DHK Storage, Inc. and Drivenets Ltd..

Dong-a's three-year grant acceleration

Dong-a Pencil Co., Ltd. shows 5 grants in 2022–2024 against only 4 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

DHK Storage

17
Digital 14

17
Dlvr

17
DMT Solutions Glo…

17
Dowa IP Creation

17
Downhole Products

17
Drax

17
Drivenets

17
Dong-a Pencil ◀

17

What this shows Dong-a holds 17 patents at rank #16,731, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dong-a

By rank, the assignees closest to #16,731 in granted patent volume.

Leaders in B43K (Implements FOR Writing OR Drawing)

Other assignees with the most granted patents in Dong-a's primary technology class.

Dong-a's Innovation Score vs. every tracked assignee

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

29 28th percentile higher than 28% 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 · 2017–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Dong-a Pencil Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	3	17.6%
2018	5	29.4%
2019	2	11.8%
2020	2	11.8%
2023	2	11.8%
2024	3	17.6%

Which technologies does Dong-a Pencil Co., Ltd. patent most?

B43K - Implements FOR Writing OR Drawing 7

E06B - Fixed OR Movable Closures FOR Openings IN Buildings, Vehicles, Fences OR Like Enclosures IN General, e.g. Doors, Windows, Blinds, Gates 2

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 2

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 2

B41M - Printing, Duplicating, Marking, OR Copying PROCESSES; Colour Printing, 2

Top 5 of 5 technology areas

Where it ranks

Overall rank by patents

#16,742

of 49,997 tracked assignees

Innovation Score

28.6 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

Dong-a Pencil Co., Ltd.'s patent record in context - here's where to go next.

Dong-a Pencil Co., Ltd.'s lead technology class is B43K (Implements FOR Writing OR Drawing), 41.2% of its portfolio - see every assignee active in that class. Explore B43K
Ranked #16,742 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dong-a Pencil Co., Ltd. against DHK Storage, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.6/100 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.