Where does Qisda Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Qisda Corporation ranks #1,335 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 Qisda Corporation hold?

Qisda Corporation holds 317 US utility patents granted between 2015 and 2025, spanning 79 technology areas.

What is Qisda Corporation's Innovation Score?

Qisda Corporation has an Innovation Score of 60.5 out of 100 (top 3% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Qisda Corporation's patent grant rate increasing or decreasing?

Qisda Corporation's recent grant velocity is +210% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Qisda Corporation's patents?

Qisda Corporation's patents average 14.7 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 Qisda 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Qisda Corporation

Q: What technology areas does Qisda Corporation focus on?

Qisda Corporation's top technology area is 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) with 77 patents, ranking #26 of 1,064 assignees active in that subclass. Grants appear in 79 CPC subclasses total.

USPTO PatentsView assignee record - 317 granted patents across 79 technology areas, recorded in grant years 2015–2025. 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: 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).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Qisda ranks #1,335 of 49,997 tracked US assignees by granted-patent volume, with 317 patents across 79 technology areas.

#1,335
of 49,997 US assignees by volume: Top 3%
by Innovation Score (60.5/100): 14.7
avg claims per patent: +210%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1335 · Foreign Corporation #1,335 · 317 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 317 grants
TOP-DECILE #1,335/49,997
PHOTO-FINISH Genzyme
CPC-WIDE G03B · 79 areas
INNOV-STRONG 60.5/100
CLAIMS-RICH 14.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +210% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Genzyme Corporation (±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 Qisda’s 60.5 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 19.9 pts (33%) Velocity 6.7 pts (11%) Breadth 25.0 pts (41%) Claim depth 8.8 pts (15%)

Qualcomm Incorporated · highest

85
Enphase Energy · near

60
Fontem Ventures B V · near

60
Qisda · this assignee

60
Yamaha · near

60
Regal Beloit America · near

60
3D Lighting… · lowest

7

What this shows Qisda's Innovation Score is 60.5/100 (top 3% 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 Qisda?

Each dot is one of Qisda’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). Qisda’s own 14.7 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.

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

How Qisda's grant cadence moved

Between 2020–2024, Qisda Corporation received 223 grants versus 72 in 2015–2019 (+210% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2021 at 56 grants and bottomed in 2015 at 6. Lead class G03B accounts for 24.3% of the portfolio across 79 subclasses. Volume neighbours: THE Chemours Company FC, LLC (#1,331) and THE University OF Akron (#1,339).

Qisda's three-year grant acceleration

From 2019–2021 to 2022–2024, Qisda Corporation moved from 121 to 122 grants (1.01x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,159. See the growth leaderboard.

THE Chemours FC

319
Genzyme

317
Harman Becker Aut…

317
Massachusetts Mut…

317
University of Kan…

317
Qisda ◀

317
Cummins Filtratio…

316
On-bright (Shangh…

316
THE University OF…

316

What this shows Qisda holds 317 patents at rank #1,335, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Qisda

By rank, the assignees closest to #1,335 in granted patent volume.

Leaders in G03B (Apparatus OR Arrangements FOR Taking Photographs OR FOR P…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Qisda, neither rank-band nor same-CPC leaders (those blocks stay above). In G03B (Apparatus OR Arrangements FOR Taking Photographs OR FOR P…), Qisda ranks #26 of 1,064 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (60 here).

Enphase Energy, Inc. 60 Yamaha Corporation 60 Fontem Ventures B.V. 60 Regal Beloit America, Inc. 60

Similar claim depth

Nearest assignees by average claims per patent (14.7 here).

Guangzhou Ucweb Computer Technology Co., Ltd 14.7 avg GE Medical Systems Global Technology Company, LLC 14.7 avg University OF South Carolina 14.7 avg Atlas Copco Airpower, Naamloze Vennootschap 14.7 avg

Qisda's Innovation Score vs. every tracked assignee

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

60 Top 3% higher than 97% 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 · 2015–2025

Grants by year

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

View data table

Qisda Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	6	1.9%
2016	8	2.5%
2017	16	5.0%
2018	22	6.9%
2019	20	6.3%
2020	45	14.2%
2021	56	17.7%
2022	48	15.1%
2023	45	14.2%
2024	29	9.1%
2025partial year	22	6.9%

Which technologies does Qisda Corporation patent most?

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 77

G02B - Optical Elements, Systems OR Apparatus 73

G06F - Electric Digital Data Processing 64

H04N - Pictorial Communication, e.g. Television 54

G09G - Arrangements OR Circuits FOR Control OF Indicating Devices Using Static Means TO Present Variable Information 50

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 26

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 25

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 24

A61B - DIAGNOSIS; SURGERY; Identification 22

G06T - Image Data Processing OR Generation, IN General 20

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 16

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 15

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 11

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 11

A61C - DENTISTRY; Apparatus OR Methods FOR Oral OR Dental Hygiene 10

Top 15 of 79 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

Qisda Corporation's patent record in context - here's where to go next.

Qisda Corporation's lead technology class is 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), 24.3% of its portfolio - see every assignee active in that class. Explore G03B
Ranked #1,335 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Qisda Corporation against THE Chemours Company FC, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 60.5/100 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.