Overall rank by patents
#3,842
Across all tracked assignees
USPTO PatentsView assignee record — 94 granted patents across 31 technology areas, active 2017–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F25B (REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS).
The verdict
Hitachi-johnson holds 94 US patents across 31 technology areas — rank #3,842 of 50,000 tracked assignees.
Hitachi-Johnson Controls Air Conditioning, Inc. has been granted 94 US utility patents between 2017 and 2025, placing Hitachi-Johnson Controls Air Conditioning, Inc. at rank #3,842 across all assignees tracked by PlainPatent. This portfolio spans 31 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.2 claims per patent with primary concentration in F25B (REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS). As a Foreign Corporation, Hitachi-Johnson Controls Air Conditioning, Inc. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 41.6/100 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 59 grants, compared with 35 in the 2015–2019 window — a +69% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign 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. Hitachi-Johnson Controls Air Conditioning, Inc.'s 8.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 31 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Hitachi-Johnson Controls Air Conditioning, Inc. against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀
SAMSUNG ELECTRONICS CO., LTD.
106,890 patents
International Business Machines Corporation
72,926 patents
Canon Kabushiki Kaisha
34,378 patents
LG ELECTRONICS INC.
32,607 patents
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
31,041 patents
Apple Inc.
30,560 patents
QUALCOMM Incorporated
30,354 patents
Intel Corporation
27,498 patents
Hitachi-Johnson Controls Air Conditioning, Inc.
94 patents
What this shows Hitachi-Johnson holds 94 patents — placing it at rank #3,842 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
Hitachi-Johnson's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
42 Top 33% higher than 67% 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 2017–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2017 | 1 | 1.1% |
| 2018 | 9 | 9.6% |
| 2019 | 25 | 26.6% |
| 2020 | 25 | 26.6% |
| 2021 | 20 | 21.3% |
| 2022 | 7 | 7.4% |
| 2023 | 3 | 3.2% |
| 2024 | 3 | 3.2% |
| 2025 | 1 | 1.1% |
Top 15 of 31 technology areas
Overall rank by patents
#3,842
Across all tracked assignees
41.6 out of 100
How to use this portfolio
Hitachi-johnson's 94 grants land it in the top 33% by Innovation Score — but volume alone doesn't tell you where the strength sits.
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.
Hitachi-Johnson Controls Air Conditioning, Inc.'s primary CPC class — all holders and yearly trends
See where Hitachi-Johnson Controls Air Conditioning, Inc. ranks among the largest US patent assignees
Browse every CPC technology area by patent activity
The four dimensions behind the Innovation Score
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.