Where does Drum Workshop, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Drum Workshop, Inc. ranks #9,485 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 Drum Workshop, Inc. hold?

Drum Workshop, Inc. holds 33 US utility patents granted between 2016 and 2025, spanning 10 technology areas.

What is Drum Workshop, Inc.'s Innovation Score?

Drum Workshop, Inc. has an Innovation Score of 40.3 out of 100 (top 36% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Drum Workshop, Inc.'s patent grant rate increasing or decreasing?

Drum Workshop, Inc.'s recent grant velocity is -52% 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 Drum Workshop, Inc.'s patents?

Drum Workshop, Inc.'s patents average 21.9 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 Drum Workshop, Inc. 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

Drum Workshop, Inc.

Q: What technology areas does Drum Workshop, Inc. focus on?

Drum Workshop, Inc.'s top technology area is G10D (Stringed Musical INSTRUMENTS; Wind Musical INSTRUMENTS; Accordions OR CONCERTINAS; Percussion Musical INSTRUMENTS; Aeolian HARPS; Singing-flame Musical INSTRUMENTS; Musical Instruments NOT Otherwise Provided FOR) with 31 patents, ranking #3 of 62 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

USPTO PatentsView assignee record - 33 granted patents across 10 technology areas, recorded in grant years 2016–2025. 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: G10D (Stringed Musical INSTRUMENTS; Wind Musical INSTRUMENTS; Accordions OR CONCERTINAS; Percussion Musical INSTRUMENTS; Aeolian HARPS; Singing-flame Musical INSTRUMENTS; Musical Instruments NOT Otherwise P).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Drum ranks #9,485 of 49,997 tracked US assignees by granted-patent volume, with 33 patents across 10 technology areas.

#9,485
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.3/100): 21.9
avg claims per patent: -52%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R9485 · US Corporation #9,485 · 33 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-DENSE · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 33 grants
UPPER-Q #9,485/49,997
PHOTO-FINISH DE Nora Permelec
CPC-FOCUS G10D · 10 areas
INNOV-PAR 40.3/100
CLAIMS-DENSE 21.9 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -52% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: DE Nora Permelec Ltd (±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.

How Drum’s 40.3 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 12.2 pts (30%) Velocity 3.8 pts (9%) Breadth 11.2 pts (28%) Claim depth 13.1 pts (33%)

Qualcomm Incorporated · highest

85
Bizlink International · near

40
Drum Workshop · this assignee

40
Himax Imaging · near

40
Lasermax · near

40
Zhejiang NHU · near

40
3D Lighting… · lowest

7

What this shows Drum's Innovation Score is 40.3/100 (top 36% 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 Drum?

Each dot is one of Drum’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). Drum’s own 21.9 claims/patent is ABOVE the 11.9 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Drum's grants concentrate

Drum Workshop, Inc. is a focused PatentsView assignee: 10 CPC subclasses with 93.9% of grants classified under G10D (Stringed Musical INSTRUMENTS; Wind Musical INSTRUMENTS; Accordions OR CONCERTINAS; Percussion Musical INSTRUMENTS; Aeolian HARPS; Singing-flame Musical INSTRUMENTS; Musical Instruments NOT Otherwise P). Peak complete grant year is 2016 (8 grants) versus a trough of 1 in 2019. By volume, Drum sits between DE Nora Permelec Ltd and Ecole DE Technologie Superieure.

Drum's three-year grant acceleration

Drum Workshop, Inc. shows 4 grants in 2022–2024 against only 7 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.

DE Nora Permelec

33
Dicon Fiberoptics

33
Douyin Vision

33
DPG USA

33
E-lead

33
East China Jiaoto…

33
Eaton Electrical…

33
Ecole DE Superieu…

33
Drum Workshop ◀

33

What this shows Drum holds 33 patents at rank #9,485, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Drum

By rank, the assignees closest to #9,485 in granted patent volume.

Leaders in G10D (Stringed Musical Instruments)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Drum, neither rank-band nor same-CPC leaders (those blocks stay above). In G10D (Stringed Musical Instruments), Drum ranks #3 of 62 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (40 here).

Bizlink International Corp. 40 Lasermax Inc. 40 Zhejiang NHU Co., Ltd. 40 Himax Imaging Limited 40

Drum's Innovation Score vs. every tracked assignee

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

40 Top 36% higher than 64% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Drum Workshop, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	8	24.2%
2017	8	24.2%
2018	4	12.1%
2019	1	3.0%
2020	3	9.1%
2021	3	9.1%
2022	1	3.0%
2023	1	3.0%
2024	2	6.1%
2025partial year	2	6.1%

Which technologies does Drum Workshop, Inc. patent most?

G10D - Stringed Musical INSTRUMENTS; Wind Musical INSTRUMENTS; Accordions OR CONCERTINAS; Percussion Musical INSTRUMENTS; Aeolian HARPS; Singing-flame Musical INSTRUMENTS; Musical Instruments NOT Otherwise Provided FOR 31

G10G - Representation OF MUSIC; Recording Music IN Notation FORM; Accessories FOR Music OR Musical Instruments NOT Otherwise Provided FOR, e.g. Supports 6

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 5

G10H - Electrophonic Musical INSTRUMENTS; Instruments IN Which THE Tones ARE Generated BY Electromechanical Means OR Electronic Generators, OR IN Which THE Tones ARE Synthesised From A Data Store 4

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 3

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 2

H04R - Loudspeakers, Microphones, Gramophone Pick-ups OR Like Acoustic Electromechanical TRANSDUCERS; Deaf-aid SETS; Public Address Systems 2

Y10T - Technical Subjects Covered BY Former US Classification 1

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 1

B25B - Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding 1

Top 10 of 10 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

Drum Workshop, Inc.'s patent record in context - here's where to go next.

Drum Workshop, Inc.'s lead technology class is G10D (Stringed Musical INSTRUMENTS; Wind Musical INSTRUMENTS; Accordions OR CONCERTINAS; Percussion Musical INSTRUMENTS; Aeolian HARPS; Singing-flame Musical INSTRUMENTS; Musical Instruments NOT Otherwise P), 93.9% of its portfolio - see every assignee active in that class. Explore G10D
Ranked #9,485 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Drum Workshop, Inc. against DE Nora Permelec Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.3/100 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.