Where does Sumitomo Electric Hardmetal Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sumitomo Electric Hardmetal Corp. ranks #960 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 Sumitomo Electric Hardmetal Corp. hold?

Sumitomo Electric Hardmetal Corp. holds 459 US utility patents granted between 2015 and 2025, spanning 49 technology areas.

What is Sumitomo Electric Hardmetal Corp.'s Innovation Score?

Sumitomo Electric Hardmetal Corp. has an Innovation Score of 56.5 out of 100 (top 6% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sumitomo Electric Hardmetal Corp. focus on?

Sumitomo Electric Hardmetal Corp.'s top technology area is B23B (TURNING; Boring) with 229 patents. Grants appear in 49 CPC subclasses total.

Is Sumitomo Electric Hardmetal Corp.'s patent grant rate increasing or decreasing?

Sumitomo Electric Hardmetal Corp.'s recent grant velocity is +69% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Sumitomo Electric Hardmetal Corp.'s patents?

Sumitomo Electric Hardmetal Corp.'s patents average 5.9 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 Sumitomo Electric Hardmetal Corp. 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

Sumitomo Electric Hardmetal Corp.

USPTO PatentsView assignee record - 459 granted patents across 49 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, Sumitomo ranks #960 of 49,997 tracked US assignees by granted-patent volume, with 459 patents across 49 technology areas.

#960
of 49,997 US assignees by volume: Top 6%
by Innovation Score (56.5/100): 5.9
avg claims per patent: +69%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R960 · Foreign Corporation #960 · 459 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 459 grants
TOP-DECILE #960/49,997
PHOTO-FINISH Cellco Partnership
CPC-WIDE B23B · 49 areas
INNOV-PAR 56.5/100
CLAIMS-SPARSE 5.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +69% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Cellco Partnership (±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
Huf Hülsbeck &… · near

57
Mitsui Mining &… · near

57
Neutron Holdings · near

57
Sumitomo Electric… · this assignee

57
Vehicle Service Group · near

57
3D Lighting… · lowest

7

What this shows Sumitomo's Innovation Score is 56.5/100 (top 6% 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 Sumitomo's grants concentrate

Sumitomo Electric Hardmetal Corp. is a focused PatentsView assignee: 49 CPC subclasses with 49.9% of grants classified under B23B (TURNING; Boring). Peak complete grant year is 2021 (61 grants) versus a trough of 21 in 2015. By volume, Sumitomo sits between CNH Industrial Canada, Ltd. and Fisher Controls International LLC.

Sumitomo's three-year grant acceleration

From 2019–2021 to 2022–2024, Sumitomo Electric Hardmetal Corp. moved from 136 to 144 grants (1.06x 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 #1,043. See the growth leaderboard.

CNH Industrial Ca…

462
Himax

462
Riken

461
Cellco Partnership

459
Sumitomo Electric… ◀

459
Huazhong Universi…

458
Sandvik Intellect…

458
ADP

457
Fisher Controls I…

456

What this shows Sumitomo holds 459 patents at rank #960, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sumitomo

By rank, the assignees closest to #960 in granted patent volume.

Leaders in B23B (Turning)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sumitomo, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (57 here).

Mitsui Mining & Smelting Co., Ltd. 57 Huf Hülsbeck & Fürst GmbH & Co. KG 57 Neutron Holdings, Inc. 57 Vehicle Service Group, LLC 57

Similar claim depth

Nearest assignees by average claims per patent (5.9 here).

Infinitus (CHINA) Company Ltd. 5.9 avg Fuerst Group, Inc. 6.0 avg Kobayashi Pharmaceutical Co., Ltd. 5.9 avg Ashley Furniture Industries, LLC 6.0 avg

Sumitomo's Innovation Score vs. every tracked assignee

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

57 Top 6% higher than 94% 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

Sumitomo Electric Hardmetal Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	21	4.6%
2016	23	5.0%
2017	26	5.7%
2018	45	9.8%
2019	32	7.0%
2020	43	9.4%
2021	61	13.3%
2022	60	13.1%
2023	33	7.2%
2024	51	11.1%
2025partial year	64	13.9%

Which technologies does Sumitomo Electric Hardmetal Corp. patent most?

B23B - TURNING; Boring 229

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 132

B23C - Milling 101

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 63

C22C - Alloys 56

Y10T - Technical Subjects Covered BY Former US Classification 52

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 42

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 20

B23D - PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; Like Operations FOR Working Metal BY Removing Material, NOT Otherwise Provided FOR 17

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 16

B23F - Making Gears OR Toothed Racks 16

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 15

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 14

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 9

B23G - Thread CUTTING; Working OF Screws, Bolt Heads, OR Nuts, IN Conjunction Therewith 9

Top 15 of 49 technology areas

Where it ranks

Overall rank by patents

#960

of 49,997 tracked assignees

Innovation Score

56.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Sumitomo Electric Hardmetal Corp.'s patent record in context - here's where to go next.

Sumitomo Electric Hardmetal Corp.'s lead technology class is B23B (TURNING; Boring), 49.9% of its portfolio - see every assignee active in that class. Explore B23B
Ranked #960 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sumitomo Electric Hardmetal Corp. against CNH Industrial Canada, Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 56.5/100 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.