Where does Adamant Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Adamant Co., Ltd. ranks #18,345 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 Adamant Co., Ltd. hold?

Adamant Co., Ltd. holds 15 US utility patents granted between 2016 and 2019, spanning 10 technology areas.

What is Adamant Co., Ltd.'s Innovation Score?

Adamant Co., Ltd. has an Innovation Score of 22.4 out of 100 (10th 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 Adamant Co., Ltd. focus on?

Adamant Co., Ltd.'s top technology area is G02B (Optical Elements, Systems OR Apparatus) with 4 patents, ranking #1,997 of 4,891 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

Is Adamant Co., Ltd.'s patent grant rate increasing or decreasing?

Adamant Co., Ltd.'s recent grant velocity is -100% 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 Adamant Co., Ltd.'s patents?

Adamant Co., Ltd.'s patents average 2.8 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 Adamant Co., 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

Adamant Co., Ltd.

USPTO PatentsView assignee record - 15 granted patents across 10 technology areas, recorded in grant years 2016–2019. 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: G02B (Optical Elements, Systems OR Apparatus).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Adamant ranks #18,345 of 49,997 tracked US assignees by granted-patent volume, with 15 patents across 10 technology areas.

#18,345
of 49,997 US assignees by volume: 10th percentile
by Innovation Score (22.4/100): 2.8
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R18345 · Foreign Corporation #18,345 · 15 grants

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

GRANTS-MICRO 15 grants
MID-PACK #18,345/49,997
PHOTO-FINISH ABL BIO
CPC-FOCUS G02B · 10 areas
INNOV-THIN 22.4/100
CLAIMS-SPARSE 2.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: ABL BIO 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 Adamant’s 22.4 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 9.6 pts (43%) Velocity 0.0 pts (0%) Breadth 11.2 pts (50%) Claim depth 1.7 pts (8%)

Qualcomm Incorporated · highest

85
Adamant · this assignee

22
3D Lighting… · lowest

7

What this shows Adamant's Innovation Score is 22.4/100 (10th 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 Adamant?

Each dot is one of Adamant’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). Adamant’s own 2.8 claims/patent is at or below the 13.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Adamant's grants concentrate

Adamant Co., Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 26.7% of grants classified under G02B (Optical Elements, Systems OR Apparatus). Peak complete grant year is 2017 (10 grants) versus a trough of 1 in 2018. By volume, Adamant sits between A&C Future Inc. and AKSOR.

A&C Future

15
ABL BIO

15
Academy OF Shenzh…

15
Activ Surgical

15
Advanced Automoti…

15
Agustawestland S…

15
Airties Kablosuz…

15
Aksor

15
Adamant ◀

15

What this shows Adamant holds 15 patents at rank #18,339, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Adamant

By rank, the assignees closest to #18,339 in granted patent volume.

Leaders in G02B (Optical Elements)

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

Adamant's Innovation Score vs. every tracked assignee

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

22 10th percentile higher than 10% 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 · 2016–2019

Grants by year

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

View data table

Adamant Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	3	20.0%
2017	10	66.7%
2018	1	6.7%
2019	1	6.7%

Which technologies does Adamant Co., Ltd. patent most?

G02B - Optical Elements, Systems OR Apparatus 4

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

B28B - Shaping Clay OR Other Ceramic COMPOSITIONS; Shaping SLAG; Shaping Mixtures Containing Cementitious Material, e.g. Plaster 1

B62D - Motor VEHICLES; Trailers 1

H02K - Dynamo-electric Machines 1

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 1

H02N - Electric Machines NOT Otherwise Provided FOR 1

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

H04B - Transmission 1

Top 10 of 10 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

Adamant Co., Ltd.'s patent record in context - here's where to go next.

Adamant Co., Ltd.'s lead technology class is G02B (Optical Elements, Systems OR Apparatus), 26.7% of its portfolio - see every assignee active in that class. Explore G02B
Ranked #18,345 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Adamant Co., Ltd. against A&C Future Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 22.4/100 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.