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

According to USPTO PatentsView (2015–2025 granted utility patents), Unizeo Co., Ltd. ranks #21,978 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Unizeo Co., Ltd. hold?

Unizeo Co., Ltd. holds 13 US utility patents granted between 2015 and 2018, spanning 11 technology areas.

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

Unizeo Co., Ltd. has an Innovation Score of 25.7 out of 100 (top 82% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Unizeo 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 Unizeo Co., Ltd.'s patents?

Unizeo Co., Ltd.'s patents average 8.1 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 Unizeo 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

Unizeo Co., Ltd.

Q: What technology areas does Unizeo Co., Ltd. focus on?

Unizeo Co., Ltd.'s top technology area is C01B (NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C) with 13 patents. Grants appear in 11 CPC subclasses total.

USPTO PatentsView assignee record - 13 granted patents across 11 technology areas, recorded in grant years 2015–2018. 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: C01B (NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Unizeo ranks #21,978 of 50,000 tracked US assignees by granted-patent volume, with 13 patents across 11 technology areas.

#21,978
of 50,000 US assignees by volume: Top 82%
by Innovation Score (25.7/100): 8.1
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21978 · Foreign Corporation #21,978 · 13 grants

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

GRANTS-MICRO 13 grants
MID-PACK #21,978/50,000
PHOTO-FINISH Union Optech
CPC-FOCUS C01B · 11 areas
INNOV-THIN 25.7/100
CLAIMS-PAR 8.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Union Optech Co., 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.

Qualcomm Incorporated · highest

85
Unizeo · this assignee

26
3D Lighting Innovati… · lowest

7

What this shows Unizeo's Innovation Score is 25.7/100 (top 82% 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.

Where Unizeo's grants concentrate

Unizeo Co., Ltd. is a focused PatentsView assignee: 11 CPC subclasses with 100% of grants classified under C01B (NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C). Peak complete grant year is 2017 (7 grants) versus a trough of 1 in 2015. By volume, Unizeo sits between Universitätsklinikum JENA and Urogen Pharma Ltd..

UniversitÄTsklini…

13
Userzoom

13
Usens

13
Utility Associates

13
Union Optech

13
Universidade de S…

13
Universitaet der…

13
Urogen Pharma

13
Unizeo ◀

13

What this shows Unizeo holds 13 patents at rank #21,975, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Unizeo

By rank, the assignees closest to #21,975 in granted patent volume.

Leaders in C01B (Non-metallic Elements)

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

Unizeo's Innovation Score vs. every tracked assignee

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

26 Top 82% higher than 18% of 50,000 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 · 2015–2018

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Unizeo Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	7.7%
2016	4	30.8%
2017	7	53.8%
2018	1	7.7%

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

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 13

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 12

B01D - SEPARATION 5

C07B - GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR 2

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 2

C10G - CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION ; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES 2

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 2

F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 2

C30B - SINGLE-CRYSTAL GROWTH ; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL ; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE ; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WI 1

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 1

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 1

Top 11 of 11 technology areas

Where it ranks

Overall rank by patents

#21,978

of 50,000 tracked assignees

Innovation Score

25.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

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.