Where does J-lok Co. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), J-lok Co. ranks #29,147 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 J-lok Co. hold?

J-lok Co. holds 9 US utility patents granted between 2016 and 2022, spanning 8 technology areas.

What is J-lok Co.'s Innovation Score?

J-lok Co. has an Innovation Score of 26.8 out of 100 (21st 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 J-lok Co. focus on?

J-lok Co.'s top technology area is E21D (SHAFTS; TUNNELS; GALLERIES; Large Underground Chambers) with 8 patents, ranking #13 of 112 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

Is J-lok Co.'s patent grant rate increasing or decreasing?

J-lok Co.'s recent grant velocity is +25% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for J-lok Co.'s patents?

J-lok Co.'s patents average 10.2 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 J-lok Co. 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

J-lok Co.

USPTO PatentsView assignee record - 9 granted patents across 8 technology areas, recorded in grant years 2016–2022. 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: E21D (SHAFTS; TUNNELS; GALLERIES; Large Underground Chambers).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, J-lok ranks #29,147 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 8 technology areas.

#29,147
of 49,997 US assignees by volume: 21st percentile
by Innovation Score (26.8/100): 10.2
avg claims per patent: +25%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R29147 · US Corporation #29,147 · 9 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-USCORP · VEL-UP · BOOK-FULL

GRANTS-MICRO 9 grants
MID-PACK #29,147/49,997
PHOTO-FINISH Isofol Medical AB
CPC-NARROW E21D · 8 areas
INNOV-THIN 26.8/100
CLAIMS-PAR 10.2 claims/avg
TYPE-USCORP US Corporation
VEL-UP +25% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Isofol Medical AB (±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 J-lok’s 26.8 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 8.0 pts (30%) Velocity 2.7 pts (10%) Breadth 10.0 pts (37%) Claim depth 6.1 pts (23%)

Qualcomm Incorporated · highest

85
J-lok · this assignee

27
3D Lighting… · lowest

7

What this shows J-lok's Innovation Score is 26.8/100 (21st 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 J-lok?

Each dot is one of J-lok’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). J-lok’s own 10.2 claims/patent is at or below the 15.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where J-lok's grants concentrate

J-lok Co. is a focused PatentsView assignee: 8 CPC subclasses with 88.9% of grants classified under E21D (SHAFTS; TUNNELS; GALLERIES; Large Underground Chambers). Peak complete grant year is 2019 (2 grants) versus a trough of 1 in 2016. By volume, J-lok sits between Isofol Medical AB and Japan VAM & Poval Co., Ltd..

J-lok's three-year grant acceleration

J-lok Co. shows 2 grants in 2022–2024 against only 5 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.

Isofol Medical AB

9
Istituto Europeo…

9
Ivys

9
J-fiber

9
J-mex

9
Jaguar Imports

9
Japan Super Quartz

9
Japan VAM & Poval

9
J-lok ◀

9

What this shows J-lok holds 9 patents at rank #29,123, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near J-lok

By rank, the assignees closest to #29,123 in granted patent volume.

Leaders in E21D (Shafts)

Other assignees with the most granted patents in J-lok's primary technology class.

J-lok's Innovation Score vs. every tracked assignee

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

27 21st percentile higher than 21% 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 · 2016–2022

Grants by year

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

View data table

J-lok Co. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	11.1%
2017	1	11.1%
2019	2	22.2%
2020	1	11.1%
2021	2	22.2%
2022	2	22.2%

Which technologies does J-lok Co. patent most?

E21D - SHAFTS; TUNNELS; GALLERIES; Large Underground Chambers 8

E02D - FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures 2

B65B - Machines, Apparatus OR Devices FOR, OR Methods OF, Packaging Articles OR MATERIALS; Unpacking 2

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 2

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 2

B29B - Preparation OR Pretreatment OF THE Material TO BE SHAPED; Making Granules OR PREFORMS; Recovery OF Plastics OR Other Constituents OF Waste Material Containing Plastics 2

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 1

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 1

Top 8 of 8 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

J-lok Co.'s patent record in context - here's where to go next.

J-lok Co.'s lead technology class is E21D (SHAFTS; TUNNELS; GALLERIES; Large Underground Chambers), 88.9% of its portfolio - see every assignee active in that class. Explore E21D
Ranked #29,147 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare J-lok Co. against Isofol Medical AB, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.8/100 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.