Where does Sirigen II Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sirigen II Limited ranks #13,159 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 Sirigen II Limited hold?

Sirigen II Limited holds 23 US utility patents granted between 2018 and 2025, spanning 9 technology areas.

What is Sirigen II Limited's Innovation Score?

Sirigen II Limited has an Innovation Score of 39.5 out of 100 (top 38% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sirigen II Limited focus on?

Sirigen II Limited's top technology area is H10K (Organic Electric Solid-state Devices) with 23 patents, ranking #125 of 791 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

Is Sirigen II Limited's patent grant rate increasing or decreasing?

Sirigen II Limited's recent grant velocity is +13% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Sirigen II Limited's patents?

Sirigen II Limited's patents average 21.5 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 Sirigen II Limited 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

Sirigen II Limited

USPTO PatentsView assignee record - 23 granted patents across 9 technology areas, recorded in grant years 2018–2025. 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: H10K (Organic Electric Solid-state Devices).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Sirigen ranks #13,159 of 49,997 tracked US assignees by granted-patent volume, with 23 patents across 9 technology areas.

#13,159
of 49,997 US assignees by volume: Top 38%
by Innovation Score (39.5/100): 21.5
avg claims per patent: +13%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R13159 · Foreign Corporation #13,159 · 23 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-DENSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-SMALL 23 grants
MID-PACK #13,159/49,997
PHOTO-FINISH Shanghai Institute…
CPC-NARROW H10K · 9 areas
INNOV-THIN 39.5/100
CLAIMS-DENSE 21.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +13% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Shanghai Institute OF Pharmaceutical Industry (±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 Sirigen’s 39.5 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 11.0 pts (28%) Velocity 5.0 pts (13%) Breadth 10.6 pts (27%) Claim depth 12.9 pts (33%)

Qualcomm Incorporated · highest

85
Coravin · near

39
Dai-ichi Seiko · near

39
iPEK International · near

39
Overstock com · near

39
Sirigen II · this assignee

39
3D Lighting… · lowest

7

What this shows Sirigen's Innovation Score is 39.5/100 (top 38% 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 Sirigen?

Each dot is one of Sirigen’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). Sirigen’s own 21.5 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.

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

Where Sirigen's grants concentrate

Sirigen II Limited is a focused PatentsView assignee: 9 CPC subclasses with 100% of grants classified under H10K (Organic Electric Solid-state Devices). Peak complete grant year is 2019 (5 grants) versus a trough of 1 in 2020. By volume, Sirigen sits between Shanghai Institute OF Pharmaceutical Industry and Specified Technologies Inc..

Sirigen's three-year grant acceleration

Sirigen II Limited shows 6 grants in 2022–2024 against only 8 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.

Shanghai Institut…

23
Shenzhen Kanger T…

23
Shenzhen Yongchua…

23
Shine

23
Sixring

23
Smartsens Technol…

23
Smw-autoblok Span…

23
Specified

23
Sirigen II ◀

23

What this shows Sirigen holds 23 patents at rank #13,143, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sirigen

By rank, the assignees closest to #13,143 in granted patent volume.

Leaders in H10K (Organic Electric Solid-state Devices)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sirigen, neither rank-band nor same-CPC leaders (those blocks stay above). In H10K (Organic Electric Solid-state Devices), Sirigen ranks #125 of 791 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (39 here).

Overstock.com, Inc. 39 iPEK International GmbH 39 Coravin, Inc. 39 Dai-ichi Seiko Co., Ltd. 39

Sirigen's Innovation Score vs. every tracked assignee

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

39 Top 38% higher than 62% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Sirigen II Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	3	13.0%
2019	5	21.7%
2020	1	4.3%
2021	2	8.7%
2022	1	4.3%
2023	1	4.3%
2024	4	17.4%
2025partial year	6	26.1%

Which technologies does Sirigen II Limited patent most?

H10K - Organic Electric Solid-state Devices 23

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 23

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 23

C12Q - Measuring OR Testing Processes Involving Enzymes, Nucleic Acids OR Microorganisms ; Compositions OR Test Papers THEREFOR; Processes OF Preparing Such COMPOSITIONS; Condition-responsive Control IN Microbiological OR Enzymological Processes 18

C07K - Peptides 18

C09B - Organic Dyes OR Closely-related Compounds FOR Producing Dyes ; , e.g. PIGMENTS; MORDANTS; Lakes 18

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 18

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 18

Y10T - Technical Subjects Covered BY Former US Classification 5

Top 9 of 9 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

Sirigen II Limited's patent record in context - here's where to go next.

Sirigen II Limited's lead technology class is H10K (Organic Electric Solid-state Devices), 100% of its portfolio - see every assignee active in that class. Explore H10K
Ranked #13,159 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sirigen II Limited against Shanghai Institute OF Pharmaceutical Industry, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.5/100 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.