Where does Sigma Instruments Holdings, LLC rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sigma Instruments Holdings, LLC ranks #43,094 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 Sigma Instruments Holdings, LLC hold?

Sigma Instruments Holdings, LLC holds 6 US utility patents granted between 2016 and 2021, spanning 4 technology areas.

What is Sigma Instruments Holdings, LLC's Innovation Score?

Sigma Instruments Holdings, LLC has an Innovation Score of 24.4 out of 100 (14th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Sigma Instruments Holdings, LLC's patent grant rate increasing or decreasing?

Sigma Instruments Holdings, LLC's recent grant velocity is -80% 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 Sigma Instruments Holdings, LLC's patents?

Sigma Instruments Holdings, LLC's patents average 17.7 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 Sigma Instruments Holdings, LLC 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

Sigma Instruments Holdings, LLC

Q: What technology areas does Sigma Instruments Holdings, LLC focus on?

Sigma Instruments Holdings, LLC's top technology area is A61H (Physical Therapy Apparatus, e.g. Devices FOR Locating OR Stimulating Reflex Points IN THE BODY; Artificial RESPIRATION; MASSAGE; Bathing Devices FOR Special Therapeutic OR Hygienic Purposes OR Specific Parts OF THE Body) with 6 patents, ranking #132 of 752 assignees active in that subclass. Grants appear in 4 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 4 technology areas, recorded in grant years 2016–2021. 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: A61H (Physical Therapy Apparatus, e.g. Devices FOR Locating OR Stimulating Reflex Points IN THE BODY; Artificial RESPIRATION; MASSAGE; Bathing Devices FOR Special Therapeutic OR Hygienic Purposes OR Specifi).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Sigma ranks #43,094 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 4 technology areas.

#43,094
of 49,997 US assignees by volume: 14th percentile
by Innovation Score (24.4/100): 17.7
avg claims per patent: -80%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R43094 · US Corporation #43,094 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #43,094/49,997
PHOTO-FINISH Siemens Healtchare
CPC-NARROW A61H · 4 areas
INNOV-THIN 24.4/100
CLAIMS-RICH 17.7 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -80% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Siemens Healtchare GmbH (±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 Sigma’s 24.4 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 6.7 pts (27%) Velocity 0.0 pts (0%) Breadth 7.1 pts (29%) Claim depth 10.6 pts (43%)

Qualcomm Incorporated · highest

85
Sigma Instruments… · this assignee

24
3D Lighting… · lowest

7

What this shows Sigma's Innovation Score is 24.4/100 (14th 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 Sigma?

Each dot is one of Sigma’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). Sigma’s own 17.7 claims/patent is ABOVE the 15.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Sigma's grants concentrate

Sigma Instruments Holdings, LLC is a focused PatentsView assignee: 4 CPC subclasses with 100% of grants classified under A61H (Physical Therapy Apparatus, e.g. Devices FOR Locating OR Stimulating Reflex Points IN THE BODY; Artificial RESPIRATION; MASSAGE; Bathing Devices FOR Special Therapeutic OR Hygienic Purposes OR Specifi). Peak complete grant year is 2019 (2 grants) versus a trough of 1 in 2016. By volume, Sigma sits between Siemens Healtchare GmbH and Siliconix Technology C. V..

Siemens Healtchare

6
Siemens Heathcare

6
Sigelock Systems

6
Sightglass Vision

6
Silenseed

6
Silhouette Japan

6
Silicon Precision…

6
Siliconix Technol…

6
Sigma Instruments… ◀

6

What this shows Sigma holds 6 patents at rank #43,243, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sigma

By rank, the assignees closest to #43,243 in granted patent volume.

Leaders in A61H (Physical Therapy Apparatus)

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

Sigma's Innovation Score vs. every tracked assignee

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

24 14th percentile higher than 14% 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 · 2016–2021

Grants by year

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

View data table

Sigma Instruments Holdings, LLC patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	16.7%
2017	1	16.7%
2018	1	16.7%
2019	2	33.3%
2021	1	16.7%

Which technologies does Sigma Instruments Holdings, LLC patent most?

A61H - Physical Therapy Apparatus, e.g. Devices FOR Locating OR Stimulating Reflex Points IN THE BODY; Artificial RESPIRATION; MASSAGE; Bathing Devices FOR Special Therapeutic OR Hygienic Purposes OR Specific Parts OF THE Body 6

A61N - ELECTROTHERAPY; MAGNETOTHERAPY; Radiation THERAPY; Ultrasound Therapy 6

A61B - DIAGNOSIS; SURGERY; Identification 4

A61D - Veterinary Instruments, Implements, Tools, OR Methods 1

Top 4 of 4 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

Sigma Instruments Holdings, LLC's patent record in context - here's where to go next.

Sigma Instruments Holdings, LLC's lead technology class is A61H (Physical Therapy Apparatus, e.g. Devices FOR Locating OR Stimulating Reflex Points IN THE BODY; Artificial RESPIRATION; MASSAGE; Bathing Devices FOR Special Therapeutic OR Hygienic Purposes OR Specifi), 100% of its portfolio - see every assignee active in that class. Explore A61H
Ranked #43,094 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sigma Instruments Holdings, LLC against Siemens Healtchare GmbH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 24.4/100 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.