USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Tungaloy Corporation

USPTO PatentsView assignee record - 207 granted patents across 22 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B23B (TURNING; BORING).

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

Explore the portfolio See the ranking

207

Total patents granted

CPC technology areas

13.4

Avg claims per patent

+56%

5-year filing velocity

The verdict

Tungaloy holds 207 US patents across 22 technology areas, rank #1,947 of 50,000 tracked assignees.

#1,947
of 50,000 US assignees by volume: Top 15%
by Innovation Score (49.2/100): 13.4
avg claims per patent: +56%
filing velocity, last 5 yrs

Portfolio overview

Tungaloy Corporation has been granted 207 US utility patents between 2015 and 2025, placing Tungaloy Corporation at rank #1,947 across all assignees tracked by PlainPatent. This portfolio spans 22 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.4 claims per patent with primary concentration in B23B (TURNING; BORING). As a Foreign Corporation, Tungaloy Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Tungaloy sits between Sintai Optical (shenzhen) Co., Ltd. (207 patents, rank #1,943) and KDDI Corporation (206 patents, rank #1,951) - the closest US assignees by grant volume. The composite Innovation Score of 49.2/100 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 126 grants, compared with 81 in the 2015–2019 window, a +56% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Tungaloy Corporation's 13.4 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 22 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Tungaloy Corporation against peers pursuing similar technology classes.

Sintai Optical (S…

207
Swimc

207
TDK

207
Transform SR Bran…

207
Victaulic

207
Tungaloy ◀

207
AVX

206
Daihen

206
KDDI

206

What this shows Tungaloy holds 207 patents at rank #1,947, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tungaloy

By rank, the assignees closest to #1,947 in granted patent volume.

Leaders in B23B (Turning)

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

Tungaloy's Innovation Score vs. every tracked assignee

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

49 Top 15% higher than 85% 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 · 2015–2025

Grants by year

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

View data table

Tungaloy Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	12	5.8%
2016	8	3.9%
2017	11	5.3%
2018	22	10.6%
2019	28	13.5%
2020	32	15.5%
2021	17	8.2%
2022	24	11.6%
2023	31	15.0%
2024	16	7.7%
2025	6	2.9%

Which technologies does Tungaloy Corporation patent most?

B23B - TURNING; BORING 138

B23C - MILLING 106

C23C - COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 69

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 34

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 16

C22C - ALLOYS 15

B22F - WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER ; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER 10

B23F - MAKING GEARS OR TOOTHED RACKS 4

F16D - COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES 4

B23D - PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR 3

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 2

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 2

B28B - SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER 1

B23Q - DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING ; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT 1

F16C - SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 1

Top 15 of 22 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#1,947

Across all tracked assignees

Innovation Score

49.2 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 Tungaloy Corporation hold?

Tungaloy Corporation holds 207 US granted patents filed between 2015 and 2025, spanning 22 technology areas.

What is Tungaloy Corporation's Innovation Score?

Tungaloy Corporation has an Innovation Score of 49.2 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Tungaloy Corporation focus on?

Tungaloy Corporation's top technology area is B23B (TURNING; BORING) with 138 patents. The company has filed patents in 22 CPC subclasses total.

Is Tungaloy Corporation's patent filing rate increasing or decreasing?

Tungaloy Corporation's recent filing velocity is +56% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Tungaloy Corporation's patents?

Tungaloy Corporation's patents average 13.4 claims each. This falls within the standard range, providing solid legal coverage.

How is the Tungaloy 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.

How to use this portfolio

Tungaloy's 207 grants land it in the top 15% 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 - Tungaloy ranks #1,947 of 50,000. Top 50 holders
Most of this portfolio concentrates in B23B - see who else leads that technology area. B23B 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.