USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Nara Machinery Co., Ltd.

USPTO PatentsView assignee record - 6 granted patents across 19 technology areas, active 2015–2022. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B02C (CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.7

Avg claims per patent

-80%

5-year filing velocity

The verdict

Nara holds 6 US patents across 19 technology areas, rank #41,949 of 50,000 tracked assignees.

#41,949
of 50,000 US assignees by volume: Top 54%
by Innovation Score (34.0/100): 8.7
avg claims per patent: -80%
filing velocity, last 5 yrs

Portfolio overview

Nara Machinery Co., Ltd. has been granted 6 US utility patents between 2015 and 2022, placing Nara Machinery Co., Ltd. at rank #41,949 across all assignees tracked by PlainPatent. This portfolio spans 19 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.7 claims per patent with primary concentration in B02C (CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN). As a Foreign Corporation, Nara Machinery Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Nara sits between Nanografix Corporation (6 patents, rank #41,945) and Naturally Recycled Proteins, Llc (6 patents, rank #41,953) - the closest US assignees by grant volume. The composite Innovation Score of 34.0/100 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. Between 2020 and 2025 the company received 1 grants, compared with 5 in the 2015–2019 window, a -80% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. Nara Machinery Co., Ltd.'s 8.7 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 19 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Nara Machinery Co., Ltd. against peers pursuing similar technology classes.

Nanografix

6
Nanopore

6
Nanoshell

6
Nantong Schmidt O…

6
National Institut…

6
National Institut…

6
National Universi…

6
Naturally Recycle…

6
Nara Machinery ◀

6

What this shows Nara holds 6 patents at rank #41,949, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nara

By rank, the assignees closest to #41,949 in granted patent volume.

Leaders in B02C (Crushing)

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

Nara's Innovation Score vs. every tracked assignee

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

34 Top 54% higher than 46% 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 · 2015–2022

Grants by year

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

View data table

Nara Machinery Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	16.7%
2016	2	33.3%
2017	2	33.3%
2022	1	16.7%

Which technologies does Nara Machinery Co., Ltd. patent most?

B02C - CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN 2

B07B - SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL 1

B27K - PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR ; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS 1

F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 1

F26B - DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM 1

F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 1

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 1

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

A23L - FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF 1

B02B - PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE 1

A21D - TREATMENT OF FLOUR OR DOUGH FOR BAKING, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS 1

G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR 1

B08B - CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 1

B25J - MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES 1

A61G - TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS ; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES 1

Top 15 of 19 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#41,949

Across all tracked assignees

Innovation Score

34.0 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 Nara Machinery Co., Ltd. hold?

Nara Machinery Co., Ltd. holds 6 US granted patents filed between 2015 and 2022, spanning 19 technology areas.

What is Nara Machinery Co., Ltd.'s Innovation Score?

Nara Machinery Co., Ltd. has an Innovation Score of 34.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nara Machinery Co., Ltd. focus on?

Nara Machinery Co., Ltd.'s top technology area is B02C (CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN) with 2 patents. The company has filed patents in 19 CPC subclasses total.

Is Nara Machinery Co., Ltd.'s patent filing rate increasing or decreasing?

Nara Machinery Co., Ltd.'s recent filing velocity is -80% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Nara Machinery Co., Ltd.'s patents?

Nara Machinery Co., Ltd.'s patents average 8.7 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Nara Machinery 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

Nara's 6 grants land it in the top 54% 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 - Nara ranks #41,949 of 50,000. Top 50 holders
Most of this portfolio concentrates in B02C - see who else leads that technology area. B02C 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.