Where does Sienna Biopharmaceuticals, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sienna Biopharmaceuticals, Inc. ranks #21,776 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 Sienna Biopharmaceuticals, Inc. hold?

Sienna Biopharmaceuticals, Inc. holds 13 US utility patents granted between 2016 and 2020, spanning 12 technology areas.

What is Sienna Biopharmaceuticals, Inc.'s Innovation Score?

Sienna Biopharmaceuticals, Inc. has an Innovation Score of 33.7 out of 100 (45th 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 Sienna Biopharmaceuticals, Inc. focus on?

Sienna Biopharmaceuticals, Inc.'s top technology area is A61K (Preparations FOR Medical, Dental OR Toiletry Purposes) with 13 patents, ranking #1,747 of 7,163 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Is Sienna Biopharmaceuticals, Inc.'s patent grant rate increasing or decreasing?

Sienna Biopharmaceuticals, Inc.'s recent grant velocity is -92% 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 Sienna Biopharmaceuticals, Inc.'s patents?

Sienna Biopharmaceuticals, Inc.'s patents average 20.5 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 Sienna Biopharmaceuticals, Inc. 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 US Corporation

Sienna Biopharmaceuticals, Inc.

USPTO PatentsView assignee record - 13 granted patents across 12 technology areas, recorded in grant years 2016–2020. 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, Sienna ranks #21,776 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 12 technology areas.

#21,776
of 49,997 US assignees by volume: 45th percentile
by Innovation Score (33.7/100): 20.5
avg claims per patent: -92%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21776 · US Corporation #21,776 · 13 grants

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

GRANTS-MICRO 13 grants
MID-PACK #21,776/49,997
PHOTO-FINISH Shenzhen Zhuopu…
CPC-FOCUS A61K · 12 areas
INNOV-THIN 33.7/100
CLAIMS-DENSE 20.5 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -92% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Shenzhen Zhuopu Digital 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 Sienna’s 33.7 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 9.1 pts (27%) Velocity 0.0 pts (0%) Breadth 12.2 pts (36%) Claim depth 12.3 pts (37%)

Qualcomm Incorporated · highest

85
Sienna Biopharmaceut… · this assignee

34
3D Lighting… · lowest

7

What this shows Sienna's Innovation Score is 33.7/100 (45th 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 Sienna?

Each dot is one of Sienna’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). Sienna’s own 20.5 claims/patent is ABOVE the 11.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Sienna's grants concentrate

Sienna Biopharmaceuticals, Inc. is a focused PatentsView assignee: 12 CPC subclasses with 100% of grants classified under A61K (Preparations FOR Medical, Dental OR Toiletry Purposes). Peak complete grant year is 2016 (11 grants) versus a trough of 1 in 2017. By volume, Sienna sits between Shenzhen Zhuopu Digital Technology Co., Ltd. and Simplex Micro, Inc..

Shenzhen Zhuopu D…

13
Shriro Australia…

13
Sicrystal

13
Siden

13
Sigma Powertain

13
Signature Therape…

13
Silanna Semicondu…

13
Simplex Micro

13
Sienna Biopharmac… ◀

13

What this shows Sienna holds 13 patents at rank #21,820, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sienna

By rank, the assignees closest to #21,820 in granted patent volume.

Leaders in A61K (Preparations FOR Medical)

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

Sienna's Innovation Score vs. every tracked assignee

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

34 45th percentile higher than 45% 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 · 2016–2020

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Sienna Biopharmaceuticals, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	11	84.6%
2017	1	7.7%
2020	1	7.7%

Which technologies does Sienna Biopharmaceuticals, Inc. patent most?

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 13

A61B - DIAGNOSIS; SURGERY; Identification 12

A61Q - Specific USE OF Cosmetics OR Similar Toiletry Preparations 12

B82Y - Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures 12

A61N - ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy 12

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 11

A61M - Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor 2

A61L - Methods OR Apparatus FOR Sterilising Materials OR Objects IN GENERAL; Disinfection, Sterilisation OR Deodorisation OF AIR; Chemical Aspects OF Bandages, Dressings, Absorbent Pads OR Surgical ARTICLES; Materials FOR Bandages, Dressings, Absorbent Pads OR Surgical Articles 1

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 1

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 1

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 1

Top 12 of 12 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

Sienna Biopharmaceuticals, Inc.'s patent record in context - here's where to go next.

Sienna Biopharmaceuticals, Inc.'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 #21,776 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sienna Biopharmaceuticals, Inc. against Shenzhen Zhuopu Digital Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.7/100 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.