Where does Sigmoid Pharma Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sigmoid Pharma Limited ranks #19,150 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 Sigmoid Pharma Limited hold?

Sigmoid Pharma Limited holds 15 US utility patents granted between 2015 and 2018, spanning 6 technology areas.

What is Sigmoid Pharma Limited's Innovation Score?

Sigmoid Pharma Limited has an Innovation Score of 33.2 out of 100 (44th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sigmoid Pharma Limited focus on?

Sigmoid Pharma Limited's top technology area is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes) with 15 patents, ranking #1,511 of 7,163 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Sigmoid Pharma Limited's patent grant rate increasing or decreasing?

Sigmoid Pharma Limited's recent grant velocity is -100% 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 Sigmoid Pharma Limited's patents?

Sigmoid Pharma Limited's patents average 44.5 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 Sigmoid Pharma 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

Sigmoid Pharma Limited

USPTO PatentsView assignee record - 15 granted patents across 6 technology areas, recorded in grant years 2015–2018. 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: A61K (Preparations FOR Medical, Dental OR Toiletry Purposes).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sigmoid ranks #19,150 of 49,997 tracked US assignees by granted-patent volume, with 15 patents across 6 technology areas.

#19,150
of 49,997 US assignees by volume: 44th percentile
by Innovation Score (33.2/100): 44.5
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R19150 · Foreign Corporation #19,150 · 15 grants

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

GRANTS-MICRO 15 grants
MID-PACK #19,150/49,997
PHOTO-FINISH Shenzhen Crastal…
CPC-NARROW A61K · 6 areas
INNOV-THIN 33.2/100
CLAIMS-DENSE 44.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Shenzhen Crastal Technology Co., 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 Sigmoid’s 33.2 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 9.6 pts (29%) Velocity 0.0 pts (0%) Breadth 8.7 pts (26%) Claim depth 15.0 pts (45%)

Qualcomm Incorporated · highest

85
Sigmoid Pharma · this assignee

33
3D Lighting… · lowest

7

What this shows Sigmoid's Innovation Score is 33.2/100 (44th 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 Sigmoid?

Each dot is one of Sigmoid’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). Sigmoid’s own 44.5 claims/patent is ABOVE the 3.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Sigmoid's grants concentrate

Sigmoid Pharma Limited is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under A61K (Preparations FOR Medical, Dental OR Toiletry Purposes). Peak complete grant year is 2016 (4 grants) versus a trough of 3 in 2015. By volume, Sigmoid sits between Shenzhen Crastal Technology Co., Ltd. and Simple Products Corporation.

Shenzhen Crastal…

15
Shenzhen Glocusen…

15
Shenzhen Lescolto…

15
Shenzhen Longsys

15
Signalfox

15
Signature Systems…

15
Silver Bullet The…

15
Simple Products

15
Sigmoid Pharma ◀

15

What this shows Sigmoid holds 15 patents at rank #19,166, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sigmoid

By rank, the assignees closest to #19,166 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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

Sigmoid's Innovation Score vs. every tracked assignee

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

33 44th percentile higher than 44% 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 · 2015–2018

Grants by year

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

View data table

Sigmoid Pharma Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	20.0%
2016	4	26.7%
2017	4	26.7%
2018	4	26.7%

Which technologies does Sigmoid Pharma Limited patent most?

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 15

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 13

Y02A - Technologies FOR Adaptation TO Climate Change 5

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

A61J - Containers Specially Adapted FOR Medical OR Pharmaceutical PURPOSES; Devices OR Methods Specially Adapted FOR Bringing Pharmaceutical Products Into Particular Physical OR Administering FORMS; Devices FOR Administering Food OR Medicines ORALLY; Baby COMFORTERS; Devices FOR Receiving Spittle 2

Y10T - Technical Subjects Covered BY Former US Classification 2

Top 6 of 6 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

Sigmoid Pharma Limited's patent record in context - here's where to go next.

Sigmoid Pharma Limited's lead technology class is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes), 100% of its portfolio - see every assignee active in that class. Explore A61K
Ranked #19,150 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sigmoid Pharma Limited against Shenzhen Crastal Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.2/100 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.