Where does GrafTech International Holdings Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), GrafTech International Holdings Inc. ranks #9,775 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 GrafTech International Holdings Inc. hold?

GrafTech International Holdings Inc. holds 32 US utility patents granted 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 (top 13% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is GrafTech International Holdings Inc.'s patent grant rate increasing or decreasing?

GrafTech International Holdings Inc.'s recent grant velocity is -93% compared to the prior five-year period (grant years, not application filing dates). Grant 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 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 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.

USPTO 2015–2025 USPTO PatentsView US Corporation

GrafTech International Holdings Inc.

Q: 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. Grants appear in 40 CPC subclasses total.

USPTO PatentsView assignee record - 32 granted patents across 40 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: H05K (Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Graftech ranks #9,775 of 49,997 tracked US assignees by granted-patent volume, with 32 patents across 40 technology areas.

#9,775
of 49,997 US assignees by volume: Top 13%
by Innovation Score (50.1/100): 15.0
avg claims per patent: -93%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R9775 · US Corporation #9,775 · 32 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 32 grants
UPPER-Q #9,775/49,997
PHOTO-FINISH Fusion Optix
CPC-WIDE H05K · 40 areas
INNOV-PAR 50.1/100
CLAIMS-RICH 15.0 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -93% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Fusion Optix, Inc. (±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
AlphaSense Oy · near

50
Encapsys · near

50
GrafTech Internation… · this assignee

50
Harmonic · near

50
TA Instruments-Waters · near

50
3D Lighting… · lowest

7

What this shows Graftech's Innovation Score is 50.1/100 (top 13% 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 Graftech's grants concentrate

GrafTech International Holdings Inc. is a focused PatentsView assignee: 40 CPC subclasses with 28.1% of grants classified under H05K (Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components). Peak complete grant year is 2016 (12 grants) versus a trough of 1 in 2018. By volume, Graftech sits between Fusion Optix, Inc. and Hanwit Precision Industries Ltd..

Graftech's three-year grant acceleration

GrafTech International Holdings Inc. shows 2 grants in 2022–2024 against only 2 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

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.

Assignees with similar portfolio profiles

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

Similar innovation score

Nearest assignees by Innovation Score (50 here).

TA Instruments-Waters LLC 50 AlphaSense Oy 50 Encapsys, LLC 50 Harmonic, Inc. 50

Graftech's Innovation Score vs. every tracked assignee

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

50 Top 13% higher than 87% 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

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%
2025partial year	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

Where it ranks

Overall rank by patents

#9,775

of 49,997 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?

What to do with this data

GrafTech International Holdings Inc.'s patent record in context - here's where to go next.

GrafTech International Holdings Inc.'s lead technology class is H05K (Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components), 28.1% of its portfolio - see every assignee active in that class. Explore H05K
Ranked #9,775 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare GrafTech International Holdings Inc. against Fusion Optix, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 50.1/100 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.