Overall rank by patents
#5,963
of 50,000 tracked assignees
USPTO PatentsView assignee record - 57 granted patents across 34 technology areas, recorded in grant years 2015–2024. 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).
The verdict
According to USPTO PatentsView, Mitsui ranks #5,963 of 50,000 tracked US assignees by granted-patent volume, with 57 patents across 34 technology areas.
USPTO PatentsView assignee plate
Corpus R5963 · Foreign Corporation #5,963 · 57 grants
GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL
Nearest grant-volume peer: Mastercard Technologies Canada ULC (±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.
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
Qualcomm Incorporated · highest
85 score
BOE Optical Science… · near
51 score
Institut National Po… · near
51 score
Liberty Mutual Insur… · near
51 score
Mitsui Chemicals Toh… · this assignee
51 score
Ubicquia · near
51 score
3D Lighting Innovati… · lowest
7 score
What this shows Mitsui Chemicals Tohcello, Inc. stamps GRANTS-SMALL, UPPER-Q, PHOTO-FINISH, CPC-FOCUS, INNOV-PAR, CLAIMS-PAR, TYPE-FRNCORP, VEL-SURGE, BOOK-FULL. Volume places it #5,963 of 50,000; Innovation Score 51.2/100 sits in the top 12% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is Mastercard Technologies Canada ULC (±0 grants).
Mitsui Chemicals Tohcello, Inc. has been granted 57 US utility patents between 2015 and 2024, placing Mitsui Chemicals Tohcello, Inc. at #5,963 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 34 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.6 claims per patent with primary concentration in H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10). As a Foreign Corporation, Mitsui Chemicals Tohcello, Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Mitsui sits between Mastercard Technologies Canada ULC (57 patents, rank #5,956) and North Atlantic Imports, Llc (57 patents, rank #5,964) - the closest US assignees by grant volume. The composite Innovation Score of 51.2/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 35 grants, compared with 22 in the 2015–2019 window, a +59% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.
Claim depth and technology breadth describe this aggregate record. Mitsui Chemicals Tohcello, Inc.'s 11.6 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 34 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
MASTERCARD TECHNOLOGIES CANADA ULC
57 patents
MEDICAL COMPONENTS, INC.
57 patents
METROLOGIC INSTRUMENTS, INC.
57 patents
MGI Tech Co., Ltd.
57 patents
Misonix, LLC
57 patents
NORTH UNIVERSITY OF CHINA
57 patents
National Jewish Health
57 patents
North Atlantic Imports, LLC
57 patents
MITSUI CHEMICALS TOHCELLO, INC.
57 patents
What this shows Mitsui holds 57 patents at rank #5,960, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #5,960 in granted patent volume.
Other assignees with the most granted patents in Mitsui's primary technology class.
Two PlainPatent-derived peer sets for Mitsui, neither rank-band nor same-CPC leaders (those blocks stay above).
Nearest assignees by Innovation Score (51 here).
Nearest assignees by average claims per patent (11.6 here).
Mitsui's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
51 Top 12% higher than 88% 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
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 3 | 5.3% |
| 2016 | 6 | 10.5% |
| 2017 | 6 | 10.5% |
| 2018 | 3 | 5.3% |
| 2019 | 4 | 7.0% |
| 2020 | 7 | 12.3% |
| 2021 | 5 | 8.8% |
| 2022 | 9 | 15.8% |
| 2023 | 4 | 7.0% |
| 2024 | 10 | 17.5% |
Top 15 of 34 technology areas
Overall rank by patents
#5,963
of 50,000 tracked assignees
51.2 out of 100
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.