Where does Sealink Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sealink Corp. ranks #42,858 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 Sealink Corp. hold?

Sealink Corp. holds 6 US utility patents granted between 2018 and 2025, spanning 11 technology areas.

What is Sealink Corp.'s Innovation Score?

Sealink Corp. has an Innovation Score of 44.9 out of 100 (top 25% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sealink Corp. focus on?

Sealink Corp.'s top technology area is F16J (Pistons ; CYLINDERS; Sealings) with 5 patents, ranking #136 of 753 assignees active in that subclass. Grants appear in 11 CPC subclasses total.

Is Sealink Corp.'s patent grant rate increasing or decreasing?

Sealink Corp.'s recent grant velocity is +300% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Sealink Corp.'s patents?

Sealink Corp.'s patents average 10.7 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 Sealink Corp. 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

Sealink Corp.

USPTO PatentsView assignee record - 6 granted patents across 11 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: F16J (Pistons ; CYLINDERS; Sealings).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sealink ranks #42,858 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 11 technology areas.

#42,858
of 49,997 US assignees by volume: Top 25%
by Innovation Score (44.9/100): 10.7
avg claims per patent: +300%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R42858 · Foreign Corporation #42,858 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #42,858/49,997
PHOTO-FINISH Scorpion OIL Tools
CPC-FOCUS F16J · 11 areas
INNOV-PAR 44.9/100
CLAIMS-PAR 10.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +300% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Scorpion OIL Tools, Inc. (±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 Sealink’s 44.9 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 (15%) Velocity 20.0 pts (45%) Breadth 11.7 pts (26%) Claim depth 6.4 pts (14%)

Qualcomm Incorporated · highest

85
CBN Nano · near

45
Fujitsu Frontech · near

45
Sealink · this assignee

45
Tamkang University · near

45
Tennant · near

45
3D Lighting… · lowest

7

What this shows Sealink's Innovation Score is 44.9/100 (top 25% 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 Sealink?

Each dot is one of Sealink’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). Sealink’s own 10.7 claims/patent is at or below the 11.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Sealink's grants concentrate

Sealink Corp. is a focused PatentsView assignee: 11 CPC subclasses with 83.3% of grants classified under F16J (Pistons ; CYLINDERS; Sealings). Peak complete grant year is 2023 (3 grants) versus a trough of 1 in 2018. By volume, Sealink sits between Scorpion OIL Tools, Inc. and Seatwirl AB.

Sealink's three-year grant acceleration

Sealink Corp. shows 3 grants in 2022–2024 against only 1 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.

Scorpion OIL Tools

6
Scott Sports

6
Sea-train Express—

6
Seal AND Pack

6
Sealite PTY

6
Seaport

6
Seatriever Intern…

6
Seatwirl AB

6
Sealink ◀

6

What this shows Sealink holds 6 patents at rank #42,772, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sealink

By rank, the assignees closest to #42,772 in granted patent volume.

Leaders in F16J (Pistons)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sealink, neither rank-band nor same-CPC leaders (those blocks stay above). In F16J (Pistons), Sealink ranks #136 of 753 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (45 here).

Tamkang University 45 CBN Nano Technologies Inc. 45 Tennant Company 45 Fujitsu Frontech Limited 45

Sealink's Innovation Score vs. every tracked assignee

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

45 Top 25% higher than 75% 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

Sealink Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	16.7%
2020	1	16.7%
2023	3	50.0%
2025partial year	1	16.7%

Which technologies does Sealink Corp. patent most?

F16J - Pistons ; CYLINDERS; Sealings 5

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 2

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 2

H01L - Semiconductor Devices NOT Covered BY Class H10 2

B24B - Machines, Devices, OR Processes FOR Grinding OR Polishing ; Dressing OR Conditioning OF Abrading SURFACES; Feeding OF Grinding, Polishing, OR Lapping Agents 1

F16H - Gearing 1

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

B23Q - Details, Components, OR Accessories FOR Machine Tools, e.g. Arrangements FOR Copying OR Controlling ; Machine Tools IN General Characterised BY THE Construction OF Particular Details OR COMPONENTS; Combinations OR Associations OF Metal-working Machines, NOT Directed TO A Particular Result 1

B63H - Marine Propulsion OR Steering 1

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 1

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

Top 11 of 11 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

Sealink Corp.'s patent record in context - here's where to go next.

Sealink Corp.'s lead technology class is F16J (Pistons ; CYLINDERS; Sealings), 83.3% of its portfolio - see every assignee active in that class. Explore F16J
Ranked #42,858 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sealink Corp. against Scorpion OIL Tools, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.9/100 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.