Where does Hitachi Chemical DuPont MicroSystems, Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hitachi Chemical DuPont MicroSystems, Ltd. ranks #35,706 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 Chemical DuPont MicroSystems, Ltd. hold?

Hitachi Chemical DuPont MicroSystems, Ltd. holds 7 US utility patents granted between 2015 and 2020, spanning 7 technology areas.

What is Hitachi Chemical DuPont MicroSystems, Ltd.'s Innovation Score?

Hitachi Chemical DuPont MicroSystems, Ltd. has an Innovation Score of 22.7 out of 100 (11th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hitachi Chemical DuPont MicroSystems, Ltd. focus on?

Hitachi Chemical DuPont MicroSystems, Ltd.'s top technology area is H01L (Semiconductor Devices NOT Covered BY Class H10) with 4 patents, ranking #1,557 of 3,373 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is Hitachi Chemical DuPont MicroSystems, Ltd.'s patent grant rate increasing or decreasing?

Hitachi Chemical DuPont MicroSystems, Ltd.'s recent grant velocity is -83% 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 Chemical DuPont MicroSystems, Ltd.'s patents?

Hitachi Chemical DuPont MicroSystems, Ltd.'s patents average 10.3 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hitachi Chemical DuPont MicroSystems, Ltd.

Q: How is the Hitachi Chemical DuPont MicroSystems, 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 PatentsView assignee record - 7 granted patents across 7 technology areas, recorded in grant years 2015–2020. 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: H01L (Semiconductor Devices NOT Covered BY Class H10).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hitachi ranks #35,706 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 7 technology areas.

#35,706
of 49,997 US assignees by volume: 11th percentile
by Innovation Score (22.7/100): 10.3
avg claims per patent: -83%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R35706 · Foreign Corporation #35,706 · 7 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 7 grants
MID-PACK #35,706/49,997
PHOTO-FINISH Himile Mechanical…
CPC-NARROW H01L · 7 areas
INNOV-THIN 22.7/100
CLAIMS-PAR 10.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -83% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Himile Mechanical Science and Technology (Shandong) 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 Hitachi’s 22.7 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 7.2 pts (32%) Velocity 0.0 pts (0%) Breadth 9.4 pts (41%) Claim depth 6.2 pts (27%)

Qualcomm Incorporated · highest

85
Hitachi Chemical… · this assignee

23
3D Lighting… · lowest

7

What this shows Hitachi's Innovation Score is 22.7/100 (11th percentile 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 Hitachi?

Each dot is one of Hitachi’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). Hitachi’s own 10.3 claims/patent is at or below the 18.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Hitachi's grants concentrate

Hitachi Chemical DuPont MicroSystems, Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 57.1% of grants classified under H01L (Semiconductor Devices NOT Covered BY Class H10). Peak complete grant year is 2015 (3 grants) versus a trough of 1 in 2017. By volume, Hitachi sits between Himile Mechanical Science and Technology (Shandong) Co., Ltd and HiveIO Inc..

Himile Mechanical…

7
Hinds Instruments

7
Hiperwall

7
Hippo Harvest

7
Hitachi Global Li…

7
Hitachi Rail GTS…

7
Hitchiner Manufac…

7
Hiveio

7
Hitachi Chemical… ◀

7

What this shows Hitachi holds 7 patents at rank #35,738, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hitachi

By rank, the assignees closest to #35,738 in granted patent volume.

Leaders in H01L (Semiconductor Devices NOT Covered BY Class H10)

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

Hitachi's Innovation Score vs. every tracked assignee

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

23 11th percentile higher than 11% 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 · 2015–2020

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Hitachi Chemical DuPont MicroSystems, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	42.9%
2016	2	28.6%
2017	1	14.3%
2020	1	14.3%

Which technologies does Hitachi Chemical DuPont MicroSystems, Ltd. patent most?

H01L - Semiconductor Devices NOT Covered BY Class H10 4

G03F - Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR; 4

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 3

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 2

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 2

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 2

Y10T - Technical Subjects Covered BY Former US Classification 1

Top 7 of 7 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

Hitachi Chemical DuPont MicroSystems, Ltd.'s patent record in context - here's where to go next.

Hitachi Chemical DuPont MicroSystems, Ltd.'s lead technology class is H01L (Semiconductor Devices NOT Covered BY Class H10), 57.1% of its portfolio - see every assignee active in that class. Explore H01L
Ranked #35,706 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hitachi Chemical DuPont MicroSystems, Ltd. against Himile Mechanical Science and Technology (Shandong) Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 22.7/100 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.