Chang Gung Memorial Hospital, Linkou
USPTO PatentsView assignee record - 32 granted patents across 24 technology areas, recorded in grant years 2016–2024. 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: A61B (DIAGNOSIS; SURGERY; Identification).
The verdict
According to USPTO PatentsView, Chang ranks #9,733 of 49,997 tracked US assignees by granted-patent volume, with 32 patents across 24 technology areas.
- #9,733
- of 49,997 US assignees by volume
- Top 35%
- by Innovation Score (40.6/100)
- 9.9
- avg claims per patent
- +120%
- grant velocity, last 5 yrs
USPTO PatentsView assignee plate
Corpus R9733 · Foreign Corporation #9,733 · 32 grants
GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL
- GRANTS-SMALL 32 grants
- UPPER-Q #9,733/49,997
- PHOTO-FINISH Canrig Drilling…
- CPC-FOCUS A61B · 24 areas
- INNOV-PAR 40.6/100
- CLAIMS-PAR 9.9 claims/avg
- TYPE-FRNCORP Foreign Corp
- VEL-SURGE +120% vel
- BOOK-FULL 10/10 fields
Nearest grant-volume peer: Canrig Drilling Technology 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 Chang’s 40.6 Innovation Score adds up
The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.
Innovation-score neighbourhood around Chang
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
- Qualcomm Incorporated · highest
Qualcomm Incorporated · highest
85 score
- Alios Biopharma · near
Alios Biopharma · near
41 score
- Bretford Manufacturing · near
Bretford Manufacturing · near
41 score
- Chang Gung Memorial… · this assignee
Chang Gung Memorial… · this assignee
41 score
- Flint Group Germany · near
Flint Group Germany · near
41 score
- GeoFrenzy · near
GeoFrenzy · near
41 score
- 3D Lighting… · lowest 7
3D Lighting… · lowest
7 score
What this shows Chang's Innovation Score is 40.6/100 (top 35% 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 Chang?
Each dot is one of Chang’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). Chang’s own 9.9 claims/patent is at or below the 17.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.
Where Chang's grants concentrate
Chang Gung Memorial Hospital, Linkou is a focused PatentsView assignee: 24 CPC subclasses with 43.8% of grants classified under A61B (DIAGNOSIS; SURGERY; Identification). Peak complete grant year is 2021 (6 grants) versus a trough of 1 in 2016. By volume, Chang sits between CPI Card Group-colorado, Inc. and Convergent Dental, Inc..
Chang's three-year grant acceleration
Chang Gung Memorial Hospital, Linkou shows 11 grants in 2022–2024 against only 14 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.
Who files at Chang's volume?
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
- CPI Card Group-co…
CPI Card Group-colorado, Inc.
32 patents
- Canrig Drilling T…
Canrig Drilling Technology Ltd.
32 patents
- Canyon Bicycles
Canyon Bicycles GmbH
32 patents
- Ceres Intellectua…
Ceres Intellectual Property Company Limited
32 patents
- Chime Financial
Chime Financial, Inc.
32 patents
- Chipmos
ChipMOS Technologies Inc.
32 patents
- Coflex de C V
Coflex S.A. de C.V.
32 patents
- Convergent Dental
Convergent Dental, Inc.
32 patents
- Chang Gung Memori… ◀
Chang Gung Memorial Hospital, Linkou
32 patents
What this shows Chang holds 32 patents at rank #9,739, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
Companies ranked near Chang
By rank, the assignees closest to #9,739 in granted patent volume.
- CPI Card Group-colorado, Inc. #9,735 · 32 patents
- Canrig Drilling Technology Ltd. #9,736 · 32 patents
- Canyon Bicycles GmbH #9,737 · 32 patents
- Ceres Intellectual Property Company Limited #9,738 · 32 patents
- Chime Financial, Inc. #9,740 · 32 patents
- ChipMOS Technologies Inc. #9,741 · 32 patents
- Coflex S.A. de C.V. #9,742 · 32 patents
- Convergent Dental, Inc. #9,743 · 32 patents
Leaders in A61B (Diagnosis)
Other assignees with the most granted patents in Chang's primary technology class.
- Covidien LP 5,709 in class
- Koniniklijke Philips N.V. 3,414 in class
- Olympus Corporation 2,758 in class
- Boston Scientific Scimed, Inc. 2,362 in class
- Cilag GmbH International 2,063 in class
- Intuitive Surgical Operations, Inc. 1,921 in class
- DePuy Synthes Products, Inc. 1,796 in class
- Ethicon, Inc. 1,762 in class
Assignees with similar portfolio profiles
Two PlainPatent-derived peer sets for Chang, neither rank-band nor same-CPC leaders (those blocks stay above). In A61B (Diagnosis), Chang ranks #1,252 of 7,127 assignees by patent count in that subclass.
Similar innovation score
Nearest assignees by Innovation Score (41 here).
Chang's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
41 Top 35% higher than 65% 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
Grants by year
Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2016 | 1 | 3.1% |
| 2017 | 3 | 9.4% |
| 2018 | 3 | 9.4% |
| 2019 | 3 | 9.4% |
| 2020 | 5 | 15.6% |
| 2021 | 6 | 18.8% |
| 2022 | 5 | 15.6% |
| 2023 | 2 | 6.3% |
| 2024 | 4 | 12.5% |
Which technologies does Chang Gung Memorial Hospital, Linkou patent most?
Top 15 of 24 technology areas
Data Source
USPTO PatentsView, US granted patents 2015–2025
What to do with this data
Chang Gung Memorial Hospital, Linkou's patent record in context - here's where to go next.
- Chang Gung Memorial Hospital, Linkou's lead technology class is A61B (DIAGNOSIS; SURGERY; Identification), 43.8% of its portfolio - see every assignee active in that class. Explore A61B
- Ranked #9,733 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
- Compare Chang Gung Memorial Hospital, Linkou against CPI Card Group-colorado, Inc., an assignee filing at a similar volume. Compare portfolios
- Innovation Score of 40.6/100 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.
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.