Where does Canplas Industries Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Canplas Industries Ltd. ranks #14,516 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 Canplas Industries Ltd. hold?

Canplas Industries Ltd. holds 20 US utility patents granted between 2015 and 2025, spanning 14 technology areas.

What is Canplas Industries Ltd.'s Innovation Score?

Canplas Industries Ltd. has an Innovation Score of 38.3 out of 100 (top 41% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Canplas Industries Ltd. focus on?

Canplas Industries Ltd.'s top technology area is E03F (SEWERS; Cesspools) with 8 patents, ranking #19 of 178 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

Is Canplas Industries Ltd.'s patent grant rate increasing or decreasing?

Canplas Industries Ltd.'s recent grant velocity is -81% 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 Canplas Industries Ltd.'s patents?

Canplas Industries Ltd.'s patents average 22.1 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 Canplas Industries Ltd. 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

Canplas Industries Ltd.

USPTO PatentsView assignee record - 20 granted patents across 14 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: E03F (SEWERS; Cesspools).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Canplas ranks #14,516 of 49,997 tracked US assignees by granted-patent volume, with 20 patents across 14 technology areas.

#14,516
of 49,997 US assignees by volume: Top 41%
by Innovation Score (38.3/100): 22.1
avg claims per patent: -81%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14516 · Foreign Corporation #14,516 · 20 grants

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

GRANTS-SMALL 20 grants
MID-PACK #14,516/49,997
PHOTO-FINISH Camcal Enterprises
CPC-FOCUS E03F · 14 areas
INNOV-THIN 38.3/100
CLAIMS-DENSE 22.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -81% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Camcal Enterprises, LLC (±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 Canplas’s 38.3 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 10.5 pts (27%) Velocity 1.3 pts (3%) Breadth 13.2 pts (34%) Claim depth 13.3 pts (35%)

Qualcomm Incorporated · highest

85
Canplas Industries · this assignee

38
3D Lighting… · lowest

7

What this shows Canplas's Innovation Score is 38.3/100 (top 41% 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 Canplas?

Each dot is one of Canplas’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). Canplas’s own 22.1 claims/patent is ABOVE the 12.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Canplas's grants concentrate

Canplas Industries Ltd. is a focused PatentsView assignee: 14 CPC subclasses with 40% of grants classified under E03F (SEWERS; Cesspools). Peak complete grant year is 2016 (5 grants) versus a trough of 1 in 2018. By volume, Canplas sits between Camcal Enterprises, LLC and Centre Hospitalier Regional Et Universitaire De Brest.

Canplas's three-year grant acceleration

Canplas Industries Ltd. shows 1 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.

Camcal Enterprises

20
Campbell Soup

20
Canfield Scientif…

20
Canoe Ventures

20
Carefree/Scott Fe…

20
Carrier Japan

20
Cathrx

20
Centre Hospitalie…

20
Canplas Industries ◀

20

What this shows Canplas holds 20 patents at rank #14,535, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Canplas

By rank, the assignees closest to #14,535 in granted patent volume.

Leaders in E03F (Sewers)

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

Canplas's Innovation Score vs. every tracked assignee

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

38 Top 41% higher than 59% 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

Canplas Industries Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	10.0%
2016	5	25.0%
2017	5	25.0%
2018	1	5.0%
2019	3	15.0%
2021	2	10.0%
2024	1	5.0%
2025partial year	1	5.0%

Which technologies does Canplas Industries Ltd. patent most?

E03F - SEWERS; Cesspools 8

B01D - Separation 8

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 7

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 6

E04D - Roof COVERINGS; SKY-LIGHTS; GUTTERS; Roof-working Tools 4

A47L - Domestic Washing OR Cleaning ; Suction Cleaners IN General 3

Y10T - Technical Subjects Covered BY Former US Classification 2

A01G - HORTICULTURE; Cultivation OF Vegetables, Flowers, Rice, Fruit, Vines, Hops OR SEAWEED; FORESTRY; Watering 1

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

A62C - Fire-fighting 1

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 1

E03C - Domestic Plumbing Installations FOR Fresh Water OR Waste Water ; Sinks 1

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 1

Top 14 of 14 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

Canplas Industries Ltd.'s patent record in context - here's where to go next.

Canplas Industries Ltd.'s lead technology class is E03F (SEWERS; Cesspools), 40% of its portfolio - see every assignee active in that class. Explore E03F
Ranked #14,516 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Canplas Industries Ltd. against Camcal Enterprises, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.3/100 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.