USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Department of Electrical Engineering, National Changhua Univ. of Education

Q: Where does Department of Electrical Engineering, National Changhua Univ. of Education rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Department of Electrical Engineering, National Changhua Univ. of Education ranks #46,121 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Q: How is the Department of Electrical Engineering, National Changhua Univ. of Education 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 PatentsView assignee record - 5 granted patents across 7 technology areas, recorded in grant years 2015–2019. 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: B23D (PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; Like Operations FOR Working Metal BY Removing Material, NOT Otherwise Provided FOR).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Department ranks #46,121 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 7 technology areas.

#46,121
of 49,997 US assignees by volume: 6th percentile
by Innovation Score (19.9/100): 7.2
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R46121 · Foreign Corporation #46,121 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,121/49,997
PHOTO-FINISH Denervx
CPC-NARROW B23D · 7 areas
INNOV-LOW 19.9/100
CLAIMS-SPARSE 7.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Denervx LLC (±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 Department’s 19.9 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 6.2 pts (31%) Velocity 0.0 pts (0%) Breadth 9.4 pts (47%) Claim depth 4.3 pts (22%)

Qualcomm Incorporated · highest

85
Department of… · this assignee

20
3D Lighting… · lowest

7

What this shows Department's Innovation Score is 19.9/100 (6th 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.

Does more volume mean deeper claims for Department?

Each dot is one of Department’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). Department’s own 7.2 claims/patent is at or below the 16.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Department's grants concentrate

Department of Electrical Engineering, National Changhua Univ. of Education is a focused PatentsView assignee: 7 CPC subclasses with 40% of grants classified under B23D (PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; Like Operations FOR Working Metal BY Removing Material, NOT Otherwise Provided FOR). Peak complete grant year is 2019 (2 grants) versus a trough of 1 in 2015. By volume, Department sits between Denervx LLC and Design Interactive, LLC.

Denervx

5
Dennert Poraver

5
Denselight Semico…

5
Department of Bio…

5
Dermaclip US

5
Desert King Inter…

5
Desiccare

5
Design Interactive

5
Department of Ele… ◀

5

What this shows Department holds 5 patents at rank #46,259, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Department

By rank, the assignees closest to #46,259 in granted patent volume.

Leaders in B23D (Planing)

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

Department's Innovation Score vs. every tracked assignee

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

20 6th percentile higher than 6% 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 · 2015–2019

Grants by year

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

View data table

Department of Electrical Engineering, National Changhua Univ. of Education patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	20.0%
2017	1	20.0%
2018	1	20.0%
2019	2	40.0%

Which technologies does Department of Electrical Engineering, National Changhua Univ. of Education patent most?

B23D - PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; Like Operations FOR Working Metal BY Removing Material, NOT Otherwise Provided FOR 2

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 2

A63B - Apparatus FOR Physical Training, Gymnastics, Swimming, Climbing, OR FENCING; Ball GAMES; Training Equipment 1

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 1

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 1

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 1

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

Top 7 of 7 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

Department of Electrical Engineering, National Changhua Univ. of Education's patent record in context - here's where to go next.

Department of Electrical Engineering, National Changhua Univ. of Education's lead technology class is B23D (PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; Like Operations FOR Working Metal BY Removing Material, NOT Otherwise Provided FOR), 40% of its portfolio - see every assignee active in that class. Explore B23D
Ranked #46,121 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Department of Electrical Engineering, National Changhua Univ. of Education against Denervx LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 19.9/100 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.