USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Grirem Hi-tech Co., Ltd.

USPTO PatentsView assignee record - 7 granted patents across 15 technology areas, active 2023–2024. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

17.4

Avg claims per patent

5-year filing velocity

The verdict

Grirem holds 7 US patents across 15 technology areas, rank #35,487 of 50,000 tracked assignees.

#35,487
of 50,000 US assignees by volume: Top 12%
by Innovation Score (51.3/100): 17.4
avg claims per patent

Portfolio overview

Grirem Hi-tech Co., Ltd. has been granted 7 US utility patents between 2023 and 2024, placing Grirem Hi-tech Co., Ltd. at rank #35,487 across all assignees tracked by PlainPatent. This portfolio spans 15 distinct Cooperative Patent Classification (CPC) subclasses, averaging 17.4 claims per patent with primary concentration in H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES). As a Foreign Corporation, Grirem Hi-tech Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Grirem sits between Grena USA Llc (7 patents, rank #35,483) and Gtlpetrol Holding Co. Llc (7 patents, rank #35,491) - the closest US assignees by grant volume. The composite Innovation Score of 51.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Historical data spans 2023 through 2024, with 7 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Grirem Hi-tech Co., Ltd.'s 17.4 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 15 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Grirem Hi-tech Co., Ltd. against peers pursuing similar technology classes.

Grena USA

7
Grenergy OPTO

7
Gridview Optical…

7
Grintech

7
GRU Energy Lab

7
Grunenthal

7
Gsquared Medical

7
Gtlpetrol Holding

7
Grirem Hi-tech ◀

7

What this shows Grirem holds 7 patents at rank #35,487, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Grirem

By rank, the assignees closest to #35,487 in granted patent volume.

Leaders in H01F (Magnets)

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

Grirem's Innovation Score vs. every tracked assignee

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

51 Top 12% higher than 88% 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 · 2023–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2023–2019 baseline. Full figures in the table below.

View data table

Grirem Hi-tech Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	2	28.6%
2024	5	71.4%

Which technologies does Grirem Hi-tech Co., Ltd. patent most?

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 4

B22F - WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER ; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER 3

C22C - ALLOYS 3

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 2

H10H - INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS 1

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 1

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 1

F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 1

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 1

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1

B01D - SEPARATION 1

G21K - TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES 1

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

G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION 1

Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION 1

Top 15 of 15 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Where it ranks

Overall rank by patents

#35,487

Across all tracked assignees

Innovation Score

51.3 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Grirem Hi-tech Co., Ltd. hold?

Grirem Hi-tech Co., Ltd. holds 7 US granted patents filed between 2023 and 2024, spanning 15 technology areas.

What is Grirem Hi-tech Co., Ltd.'s Innovation Score?

Grirem Hi-tech Co., Ltd. has an Innovation Score of 51.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Grirem Hi-tech Co., Ltd. focus on?

Grirem Hi-tech Co., Ltd.'s top technology area is H01F (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES) with 4 patents. The company has filed patents in 15 CPC subclasses total.

Is Grirem Hi-tech Co., Ltd.'s patent filing rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Grirem Hi-tech Co., Ltd..

What does claim depth mean for Grirem Hi-tech Co., Ltd.'s patents?

Grirem Hi-tech Co., Ltd.'s patents average 17.4 claims each. This falls within the standard range, providing solid legal coverage.

How is the Grirem Hi-tech 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.

How to use this portfolio

Grirem's 7 grants land it in the top 12% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Grirem ranks #35,487 of 50,000. Top 50 holders
Most of this portfolio concentrates in H01F - see who else leads that technology area. H01F leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.