Where does Zoll Circulation, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zoll Circulation, Inc. ranks #2,718 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 Zoll Circulation, Inc. hold?

Zoll Circulation, Inc. holds 143 US utility patents granted between 2015 and 2025, spanning 27 technology areas.

What is Zoll Circulation, Inc.'s Innovation Score?

Zoll Circulation, Inc. has an Innovation Score of 51.3 out of 100 (top 12% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Zoll Circulation, Inc.'s patent grant rate increasing or decreasing?

Zoll Circulation, Inc.'s recent grant velocity is -14% 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 Zoll Circulation, Inc.'s patents?

Zoll Circulation, Inc.'s patents average 15.7 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 Zoll Circulation, 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

Zoll Circulation, Inc.

Q: What technology areas does Zoll Circulation, Inc. focus on?

Zoll Circulation, Inc.'s top technology area is A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs) with 86 patents, ranking #66 of 3,082 assignees active in that subclass. Grants appear in 27 CPC subclasses total.

USPTO PatentsView assignee record - 143 granted patents across 27 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: A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zoll ranks #2,718 of 49,997 tracked US assignees by granted-patent volume, with 143 patents across 27 technology areas.

#2,718
of 49,997 US assignees by volume: Top 12%
by Innovation Score (51.3/100): 15.7
avg claims per patent: -14%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2718 · US Corporation #2,718 · 143 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DOWN · BOOK-FULL

GRANTS-MID 143 grants
TOP-DECILE #2,718/49,997
PHOTO-FINISH STMicroelectronics…
CPC-FOCUS A61F · 27 areas
INNOV-PAR 51.3/100
CLAIMS-RICH 15.7 claims/avg
TYPE-USCORP US Corporation
VEL-DOWN -14% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: STMicroelectronics (Alps) SAS (±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 Zoll’s 51.3 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 17.2 pts (34%) Velocity 6.3 pts (12%) Breadth 18.4 pts (36%) Claim depth 9.4 pts (18%)

Qualcomm Incorporated · highest

85
Bard Peripheral… · near

51
Guardian Industries · near

51
Hill's Pet Nutrition · near

51
iLOQ Oy · near

51
Zoll Circulation · this assignee

51
3D Lighting… · lowest

7

What this shows Zoll's Innovation Score is 51.3/100 (top 12% 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 Zoll?

Each dot is one of Zoll’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). Zoll’s own 15.7 claims/patent is at or below the 17.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Zoll's grants concentrate

Zoll Circulation, Inc. is a focused PatentsView assignee: 27 CPC subclasses with 60.1% of grants classified under A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device). Peak complete grant year is 2016 (28 grants) versus a trough of 7 in 2021. By volume, Zoll sits between STMicroelectronics (Alps) SAS and Fondazione Istituto Italiano DI Tecnologia.

Zoll's three-year grant acceleration

From 2019–2021 to 2022–2024, Zoll Circulation, Inc. moved from 37 to 35 grants (0.95x 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 #1,339. See the growth leaderboard.

Stmicroelectronic…

143
Taiwan FU Hsing I…

143
Teleflex Medical…

143
Tele Tracking

143
Zoll Circulation ◀

143
Coopervision Inte…

142
Cohere

142
DTS

142
Fondazione Istitu…

142

What this shows Zoll holds 143 patents at rank #2,718, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zoll

By rank, the assignees closest to #2,718 in granted patent volume.

Leaders in A61F (Filters Implantable Into Blood Vessels)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Zoll, neither rank-band nor same-CPC leaders (those blocks stay above). In A61F (Filters Implantable Into Blood Vessels), Zoll ranks #66 of 3,082 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (51 here).

Guardian Industries Corp. 51 Bard Peripheral Vascular, Inc. 51 Hill's Pet Nutrition, Inc. 51 iLOQ Oy 51

Similar claim depth

Nearest assignees by average claims per patent (15.7 here).

UDC Ireland Limited 15.7 avg MAN Truck &Bus AG 15.7 avg Vixs Systems, Inc. 15.7 avg Parallels International GmbH 15.7 avg

Zoll's Innovation Score vs. every tracked assignee

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

51 Top 12% higher than 88% 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

Zoll Circulation, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	10	7.0%
2016	28	19.6%
2017	16	11.2%
2018	10	7.0%
2019	9	6.3%
2020	21	14.7%
2021	7	4.9%
2022	12	8.4%
2023	11	7.7%
2024	12	8.4%
2025partial year	7	4.9%

Which technologies does Zoll Circulation, Inc. patent most?

A61F - Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs 86

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 43

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 40

A61B - DIAGNOSIS; SURGERY; Identification 25

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 14

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 10

Y10S - Technical Subjects Covered BY Former Uspc Cross-reference ART Collections [XRACs] AND Digests 8

G06F - Electric Digital Data Processing 7

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

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 6

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 6

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 5

Y10T - Technical Subjects Covered BY Former US Classification 5

A61G - Transport, Personal Conveyances, OR Accommodation Specially Adapted FOR Patients OR Disabled Persons ; Operating Tables OR CHAIRS; Chairs FOR DENTISTRY; Funeral Devices 4

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 4

Top 15 of 27 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

Zoll Circulation, Inc.'s patent record in context - here's where to go next.

Zoll Circulation, Inc.'s lead technology class is A61F (Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive Device), 60.1% of its portfolio - see every assignee active in that class. Explore A61F
Ranked #2,718 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zoll Circulation, Inc. against STMicroelectronics (Alps) SAS, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 51.3/100 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.