Where does Amcol International Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Amcol International Corporation ranks #23,848 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 Amcol International Corporation hold?

Amcol International Corporation holds 11 US utility patents granted between 2016 and 2021, spanning 20 technology areas.

What is Amcol International Corporation's Innovation Score?

Amcol International Corporation has an Innovation Score of 38.7 out of 100 (top 40% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Amcol International Corporation focus on?

Amcol International Corporation's top technology area is E02D (FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures) with 5 patents, ranking #80 of 430 assignees active in that subclass. Grants appear in 20 CPC subclasses total.

Is Amcol International Corporation's patent grant rate increasing or decreasing?

Amcol International Corporation's recent grant velocity is -90% 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 Amcol International Corporation's patents?

Amcol International Corporation's patents average 23.8 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 Amcol International 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

Amcol International Corporation

USPTO PatentsView assignee record - 11 granted patents across 20 technology areas, recorded in grant years 2016–2021. 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: E02D (FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Amcol ranks #23,848 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 20 technology areas.

#23,848
of 49,997 US assignees by volume: Top 40%
by Innovation Score (38.7/100): 23.8
avg claims per patent: -90%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R23848 · US Corporation #23,848 · 11 grants

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

GRANTS-MICRO 11 grants
MID-PACK #23,848/49,997
PHOTO-FINISH Allot Communications
CPC-FOCUS E02D · 20 areas
INNOV-THIN 38.7/100
CLAIMS-DENSE 23.8 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -90% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Allot Communications Ltd. (±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 Amcol’s 38.7 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 8.6 pts (22%) Velocity 0.0 pts (0%) Breadth 15.8 pts (41%) Claim depth 14.3 pts (37%)

Qualcomm Incorporated · highest

85
Amcol International · this assignee

39
3D Lighting… · lowest

7

What this shows Amcol's Innovation Score is 38.7/100 (top 40% 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 Amcol?

Each dot is one of Amcol’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). Amcol’s own 23.8 claims/patent is ABOVE the 13.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Amcol's grants concentrate

Amcol International Corporation is a focused PatentsView assignee: 20 CPC subclasses with 45.5% of grants classified under E02D (FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures). Peak complete grant year is 2016 (4 grants) versus a trough of 1 in 2021. By volume, Amcol sits between Allot Communications Ltd. and Amphenol Antenna Solutions, Inc..

Allot Communicati…

11
Almex USA

11
Altenergy Power S…

11
Ambimjb

11
American Jereh In…

11
American Tel-a-sy…

11
American Universi…

11
Amphenol Antenna…

11
Amcol Internation… ◀

11

What this shows Amcol holds 11 patents at rank #23,800, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Amcol

By rank, the assignees closest to #23,800 in granted patent volume.

Leaders in E02D (Foundations)

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

Amcol's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% 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 · 2016–2021

Grants by year

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

View data table

Amcol International Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	4	36.4%
2017	3	27.3%
2018	3	27.3%
2021	1	9.1%

Which technologies does Amcol International Corporation patent most?

E02D - FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures 5

Y10T - Technical Subjects Covered BY Former US Classification 4

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 3

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 3

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

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 3

F02B - Internal-combustion Piston ENGINES; Combustion Engines IN General 2

E02B - Hydraulic Engineering 2

E21D - SHAFTS; TUNNELS; GALLERIES; Large Underground Chambers 2

B09C - Reclamation OF Contaminated Soil 1

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 1

B30B - Presses 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

C08L - Compositions OF Macromolecular Compounds 1

B22C - Foundry Moulding 1

Top 15 of 20 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

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

Amcol International Corporation's lead technology class is E02D (FOUNDATIONS; EXCAVATIONS; Embankments ; Underground OR Underwater Structures), 45.5% of its portfolio - see every assignee active in that class. Explore E02D
Ranked #23,848 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Amcol International Corporation against Allot Communications Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.7/100 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.