Overall rank by patents
#48,941
Across all tracked assignees
USPTO PatentsView assignee record - 5 granted patents across 6 technology areas, active 2024–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B01J (CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS).
The verdict
Nanjing holds 5 US patents across 6 technology areas, rank #48,941 of 50,000 tracked assignees.
Nanjing Institute OF Microinterface Technology Co., Ltd has been granted 5 US utility patents between 2024 and 2025, placing Nanjing Institute OF Microinterface Technology Co., Ltd at rank #48,941 across all assignees tracked by PlainPatent. This portfolio spans 6 distinct Cooperative Patent Classification (CPC) subclasses, averaging 10.2 claims per patent with primary concentration in B01J (CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS). As a Foreign Corporation, Nanjing Institute OF Microinterface Technology Co., Ltd is one of the more focused assignees in the PatentsView dataset. By volume, Nanjing sits between Namsung Corporation (5 patents, rank #48,937) and NANO Spark, Inc. (5 patents, rank #48,945) - the closest US assignees by grant volume. The composite Innovation Score of 41.0/100 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. Historical data spans 2024 through 2025, with 5 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. 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. Nanjing Institute OF Microinterface Technology Co., Ltd's 10.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 6 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Nanjing Institute OF Microinterface Technology Co., Ltd against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
NAMSUNG CORPORATION
5 patents
NANJING BREADY ELECTRONICS CO., LTD.
5 patents
NANJING GEKOF INSTITUTE OF ENVIRONMENTAL PROTECTION TECHNOLOGY & EQUIPMENT CO., LTD.
5 patents
NANJING HAOHUI HI TECH CO., LTD.
5 patents
NANJING LOPU TECHNOLOGY CO., LTD.
5 patents
NANJING UNIVERSITY OF FINANCE AND ECONOMICS
5 patents
NANO HESGARSAZAN SALAMAT ARYA NCUBATION CENTER FOR MEDICAL EQUIPMENT AND DEVICES
5 patents
NANO SPARK, INC.
5 patents
NANJING INSTITUTE OF MICROINTERFACE TECHNOLOGY CO., LTD
5 patents
What this shows Nanjing holds 5 patents at rank #48,941, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #48,941 in granted patent volume.
Other assignees with the most granted patents in Nanjing's primary technology class.
Nanjing's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
41 Top 34% higher than 66% 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 2024–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2024 | 4 | 80.0% |
| 2025 | 1 | 20.0% |
Top 6 of 6 technology areas
Overall rank by patents
#48,941
Across all tracked assignees
41.0 out of 100
How to use this portfolio
Nanjing's 5 grants land it in the top 34% 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.
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.