Where does Tungaloy Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tungaloy Corporation ranks #1,947 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 Tungaloy Corporation hold?

Tungaloy Corporation holds 207 US utility patents granted 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 (top 15% of the corpus). This composite metric weighs portfolio volume (40%), grant 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, ranking #4 of 490 assignees active in that subclass. Grants appear in 22 CPC subclasses total.

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

Tungaloy Corporation's recent grant velocity is +48% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

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

Tungaloy Corporation's patents average 13.4 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 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Tungaloy Corporation

USPTO PatentsView assignee record - 207 granted patents across 22 technology areas, recorded in grant years 2015–2025. 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: B23B (TURNING; Boring).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tungaloy ranks #1,947 of 49,997 tracked US assignees by granted-patent volume, with 207 patents across 22 technology areas.

#1,947
of 49,997 US assignees by volume: Top 15%
by Innovation Score (49.2/100): 13.4
avg claims per patent: +48%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1947 · Foreign Corporation #1,947 · 207 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MID 207 grants
TOP-DECILE #1,947/49,997
PHOTO-FINISH Sintai Optical…
CPC-FOCUS B23B · 22 areas
INNOV-PAR 49.2/100
CLAIMS-RICH 13.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +48% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Sintai Optical (SHENZHEN) 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.

How Tungaloy’s 49.2 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 18.4 pts (37%) Velocity 6.1 pts (12%) Breadth 16.6 pts (34%) Claim depth 8.0 pts (16%)

Qualcomm Incorporated · highest

85
Merlin Labs · near

49
Onward Medical · near

49
Oxilio · near

49
Rapsodo PTE · near

49
Tungaloy · this assignee

49
3D Lighting… · lowest

7

What this shows Tungaloy's Innovation Score is 49.2/100 (top 15% 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 Tungaloy?

Each dot is one of Tungaloy’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). Tungaloy’s own 13.4 claims/patent is at or below the 16.2 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Tungaloy's grants concentrate

Tungaloy Corporation is a focused PatentsView assignee: 22 CPC subclasses with 66.7% of grants classified under B23B (TURNING; Boring). Peak complete grant year is 2020 (32 grants) versus a trough of 8 in 2016. By volume, Tungaloy sits between Sintai Optical (SHENZHEN) Co., Ltd. and Kddi Corporation.

Tungaloy's three-year grant acceleration

From 2019–2021 to 2022–2024, Tungaloy Corporation moved from 77 to 71 grants (0.92x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,401. See the growth leaderboard.

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.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tungaloy, neither rank-band nor same-CPC leaders (those blocks stay above). In B23B (Turning), Tungaloy ranks #4 of 490 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (49 here).

Oxilio Ltd 49 Onward Medical N.V. 49 Rapsodo PTE. Ltd. 49 Merlin Labs, Inc. 49

Similar claim depth

Nearest assignees by average claims per patent (13.4 here).

Beijing Lenovo Software Ltd. 13.4 avg Rakuten Group, Inc. 13.4 avg Sartorius Stedim Biotech GmbH 13.4 avg Airbus Defence and Space GmbH 13.4 avg

Tungaloy's Innovation Score vs. every tracked assignee

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

49 Top 15% higher than 85% 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 · 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%
2025partial year	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

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

Tungaloy Corporation's patent record in context - here's where to go next.

Tungaloy Corporation's lead technology class is B23B (TURNING; Boring), 66.7% of its portfolio - see every assignee active in that class. Explore B23B
Ranked #1,947 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tungaloy Corporation against Sintai Optical (SHENZHEN) Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.2/100 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.