USPTO 2015–2025 USPTO PatentsView US Corporation

Graftech International Holdings Inc.

USPTO PatentsView assignee record - 32 granted patents across 40 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H05K (PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

15.0

Avg claims per patent

-90%

5-year filing velocity

The verdict

Graftech holds 32 US patents across 40 technology areas, rank #9,776 of 50,000 tracked assignees.

#9,776
of 50,000 US assignees by volume: Top 13%
by Innovation Score (50.1/100): 15.0
avg claims per patent: -90%
filing velocity, last 5 yrs

Portfolio overview

Graftech International Holdings Inc. has been granted 32 US utility patents between 2015 and 2025, placing Graftech International Holdings Inc. at rank #9,776 across all assignees tracked by PlainPatent. This portfolio spans 40 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.0 claims per patent with primary concentration in H05K (PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS). As a US Corporation, Graftech International Holdings Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Graftech sits between Fusion Optix, Inc. (32 patents, rank #9,772) and Hanwit Precision Industries Ltd. (32 patents, rank #9,780) - the closest US assignees by grant volume. The composite Innovation Score of 50.1/100 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 3 grants, compared with 29 in the 2015–2019 window, a -90% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The US 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. Graftech International Holdings Inc.'s 15.0 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 40 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Graftech International Holdings Inc. against peers pursuing similar technology classes.

Fusion Optix

32
GB II

32
Grob-werke & KG

32
Gala Industies

32
Gruppo Cimbali S…

32
Gynesonics

32
Hamanakodenso

32
Hanwit Precision…

32
Graftech Internat… ◀

32

What this shows Graftech holds 32 patents at rank #9,776, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Graftech

By rank, the assignees closest to #9,776 in granted patent volume.

Leaders in H05K (Printed Circuits)

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

Graftech's Innovation Score vs. every tracked assignee

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

50 Top 13% higher than 87% 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

Graftech International Holdings Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	7	21.9%
2016	12	37.5%
2017	7	21.9%
2018	1	3.1%
2019	2	6.3%
2022	1	3.1%
2024	1	3.1%
2025	1	3.1%

Which technologies does Graftech International Holdings Inc. patent most?

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 9

H05B - ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL 8

G02F - OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 7

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 5

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 5

F27D - DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 5

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 5

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 5

F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 4

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 4

C10C - WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID 3

C10B - DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS 3

F27B - FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS 3

D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS 2

C07G - COMPOUNDS OF UNKNOWN CONSTITUTION 2

Top 15 of 40 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Declining

Where it ranks

Overall rank by patents

#9,776

Across all tracked assignees

Innovation Score

50.1 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 Graftech International Holdings Inc. hold?

Graftech International Holdings Inc. holds 32 US granted patents filed between 2015 and 2025, spanning 40 technology areas.

What is Graftech International Holdings Inc.'s Innovation Score?

Graftech International Holdings Inc. has an Innovation Score of 50.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Graftech International Holdings Inc. focus on?

Graftech International Holdings Inc.'s top technology area is H05K (PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS) with 9 patents. The company has filed patents in 40 CPC subclasses total.

Is Graftech International Holdings Inc.'s patent filing rate increasing or decreasing?

Graftech International Holdings Inc.'s recent filing velocity is -90% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for Graftech International Holdings Inc.'s patents?

Graftech International Holdings Inc.'s patents average 15.0 claims each. This falls within the standard range, providing solid legal coverage.

How is the Graftech International Holdings Inc. 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

Graftech's 32 grants land it in the top 13% 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 - Graftech ranks #9,776 of 50,000. Top 50 holders
Most of this portfolio concentrates in H05K - see who else leads that technology area. H05K 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.