Where does Clack Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Clack Corporation ranks #28,430 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 Clack Corporation hold?

Clack Corporation holds 9 US utility patents granted between 2015 and 2025, spanning 6 technology areas.

What is Clack Corporation's Innovation Score?

Clack Corporation has an Innovation Score of 29.7 out of 100 (32nd 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 Clack Corporation focus on?

Clack Corporation's top technology area is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge) with 9 patents, ranking #149 of 1,366 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Clack Corporation's patent grant rate increasing or decreasing?

Clack Corporation's recent grant velocity is -60% 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 Clack Corporation's patents?

Clack Corporation's patents average 16.2 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 Clack Corporation 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

Clack Corporation

USPTO PatentsView assignee record - 9 granted patents across 6 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: C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Clack ranks #28,430 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 6 technology areas.

#28,430
of 49,997 US assignees by volume: 32nd percentile
by Innovation Score (29.7/100): 16.2
avg claims per patent: -60%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R28430 · US Corporation #28,430 · 9 grants

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

GRANTS-MICRO 9 grants
MID-PACK #28,430/49,997
PHOTO-FINISH Chrono Therapeutics
CPC-NARROW C02F · 6 areas
INNOV-THIN 29.7/100
CLAIMS-RICH 16.2 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -60% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Chrono Therapeutics 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 Clack’s 29.7 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 (27%) Velocity 3.3 pts (11%) Breadth 8.7 pts (29%) Claim depth 9.7 pts (33%)

Qualcomm Incorporated · highest

85
Clack · this assignee

30
3D Lighting… · lowest

7

What this shows Clack's Innovation Score is 29.7/100 (32nd 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 Clack?

Each dot is one of Clack’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). Clack’s own 16.2 claims/patent is at or below the 16.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Clack's grants concentrate

Clack Corporation is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge). Peak complete grant year is 2015 (3 grants) versus a trough of 1 in 2018. By volume, Clack sits between Chrono Therapeutics Inc. and ClimateAI, Inc..

Clack's three-year grant acceleration

Clack Corporation shows 1 grants in 2022–2024 against only 2 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.

Chrono Therapeuti…

9
Ciitizen

9
Cinova Media

9
Circle Optics

9
Clarcor Engine Mo…

9
Clearblade

9
Cleveland Heartlab

9
Climateai

9
Clack ◀

9

What this shows Clack holds 9 patents at rank #28,469, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Clack

By rank, the assignees closest to #28,469 in granted patent volume.

Leaders in C02F (Treatment OF Water)

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

Clack's Innovation Score vs. every tracked assignee

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

30 32nd percentile higher than 32% 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

Clack Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	33.3%
2018	1	11.1%
2019	1	11.1%
2021	1	11.1%
2024	1	11.1%
2025partial year	2	22.2%

Which technologies does Clack Corporation patent most?

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 9

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 3

B01D - Separation 2

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 2

Y10T - Technical Subjects Covered BY Former US Classification 1

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

Top 6 of 6 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

Clack Corporation's patent record in context - here's where to go next.

Clack Corporation's lead technology class is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge), 100% of its portfolio - see every assignee active in that class. Explore C02F
Ranked #28,430 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Clack Corporation against Chrono Therapeutics Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.7/100 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.