Where does Hitachi-ge Nuclear Energy, Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi-ge Nuclear Energy, Ltd. ranks #4,668 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 Hitachi-ge Nuclear Energy, Ltd. hold?

Hitachi-ge Nuclear Energy, Ltd. holds 75 US utility patents granted between 2015 and 2025, spanning 43 technology areas.

What is Hitachi-ge Nuclear Energy, Ltd.'s Innovation Score?

Hitachi-ge Nuclear Energy, Ltd. has an Innovation Score of 49.5 out of 100 (top 14% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Hitachi-ge Nuclear Energy, Ltd.'s patent grant rate increasing or decreasing?

Hitachi-ge Nuclear Energy, Ltd.'s recent grant velocity is -39% 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 Hitachi-ge Nuclear Energy, Ltd.'s patents?

Hitachi-ge Nuclear Energy, Ltd.'s patents average 9.1 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 Hitachi-ge Nuclear Energy, Ltd. 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

Hitachi-ge Nuclear Energy, Ltd.

Q: What technology areas does Hitachi-ge Nuclear Energy, Ltd. focus on?

Hitachi-ge Nuclear Energy, Ltd.'s top technology area is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution) with 50 patents. Grants appear in 43 CPC subclasses total.

USPTO PatentsView assignee record - 75 granted patents across 43 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: Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hitachi-ge ranks #4,668 of 49,997 tracked US assignees by granted-patent volume, with 75 patents across 43 technology areas.

#4,668
of 49,997 US assignees by volume: Top 14%
by Innovation Score (49.5/100): 9.1
avg claims per patent: -39%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R4668 · Foreign Corporation #4,668 · 75 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 75 grants
TOP-DECILE #4,668/49,997
PHOTO-FINISH Crystal IS
CPC-WIDE Y02E · 43 areas
INNOV-PAR 49.5/100
CLAIMS-PAR 9.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -39% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Crystal IS, 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
Hitachi-ge Nuclear… · this assignee

50
King Abdullah… · near

50
National Guard… · near

50
Nippon Seiki · near

50
SRC · near

50
3D Lighting… · lowest

7

What this shows Hitachi-ge's Innovation Score is 49.5/100 (top 14% 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 Hitachi-ge's grants concentrate

Hitachi-ge Nuclear Energy, Ltd. is a focused PatentsView assignee: 43 CPC subclasses with 66.7% of grants classified under Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution). Peak complete grant year is 2015 (13 grants) versus a trough of 3 in 2020. By volume, Hitachi-ge sits between Crystal IS, Inc. and Invensas Bonding Technologies, Inc..

Hitachi-ge's three-year grant acceleration

Hitachi-ge Nuclear Energy, Ltd. shows 17 grants in 2022–2024 against only 19 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.

Crystal IS

75
DE LA RUE Interna…

75
Federal Home Loan…

75
Grass

75
Hefei Reliance Me…

75
Hussmann

75
Hyundai Steel

75
Invensas Bonding

75
Hitachi-ge Nuclea… ◀

75

What this shows Hitachi-ge holds 75 patents at rank #4,667, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hitachi-ge

By rank, the assignees closest to #4,667 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

Other assignees with the most granted patents in Hitachi-ge's primary technology class.

Assignees with similar portfolio profiles

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

Similar innovation score

Nearest assignees by Innovation Score (50 here).

SRC Corporation 50 Nippon Seiki Co., Ltd. 50 King Abdullah International Medical Research Center 50 National Guard Health Affairs 50

Similar claim depth

Nearest assignees by average claims per patent (9.1 here).

Wuyi University 9.1 avg Sanden Corporation 9.1 avg South China University of Technology 9.1 avg Aisin Corporation 9.1 avg

Hitachi-ge's Innovation Score vs. every tracked assignee

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

50 Top 14% higher than 86% 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

Hitachi-ge Nuclear Energy, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	13	17.3%
2016	9	12.0%
2017	7	9.3%
2018	6	8.0%
2019	9	12.0%
2020	3	4.0%
2021	7	9.3%
2022	9	12.0%
2023	4	5.3%
2024	4	5.3%
2025partial year	4	5.3%

Which technologies does Hitachi-ge Nuclear Energy, Ltd. patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 50

G21C - Nuclear Reactors 42

G21F - Protection Against X-radiation, Gamma Radiation, Corpuscular Radiation OR Particle BOMBARDMENT; Treating Radioactively Contaminated MATERIAL; Decontamination Arrangements Therefor 16

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 15

G21D - Nuclear Power Plant 10

B01D - Separation 6

G01B - Measuring Length, Thickness OR Similar Linear DIMENSIONS; Measuring ANGLES; Measuring AREAS; Measuring Irregularities OF Surfaces OR Contours 5

Y10T - Technical Subjects Covered BY Former US Classification 5

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 4

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 4

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 3

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 3

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 3

F16H - Gearing 3

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 3

Top 15 of 43 technology areas

Where it ranks

Overall rank by patents

#4,668

of 49,997 tracked assignees

Innovation Score

49.5 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

Hitachi-ge Nuclear Energy, Ltd.'s patent record in context - here's where to go next.

Hitachi-ge Nuclear Energy, Ltd.'s lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 66.7% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #4,668 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi-ge Nuclear Energy, Ltd. against Crystal IS, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.5/100 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.