Overall rank by patents
#458
Across all tracked assignees
USPTO PatentsView assignee record - 988 granted patents across 196 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F25J (LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE).
The verdict
L'air holds 988 US patents across 196 technology areas, rank #458 of 50,000 tracked assignees.
L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude has been granted 988 US utility patents between 2015 and 2025, placing L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude at rank #458 across all assignees tracked by PlainPatent. This portfolio spans 196 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.3 claims per patent with primary concentration in F25J (LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE). As a Foreign Corporation, L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude is one of the broader-portfolio assignees in the PatentsView dataset. By volume, L'air sits between Nidec Corporation (999 patents, rank #454) and Asustek Computer Inc. (970 patents, rank #462) - the closest US assignees by grant volume. The composite Innovation Score of 63.9/100 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 552 grants, compared with 436 in the 2015–2019 window, a +27% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. 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. L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude's 12.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
NIDEC CORPORATION
999 patents
GE Precision Healthcare LLC
994 patents
BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
991 patents
AGC INC.
988 patents
L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude
988 patents
Snowflake Inc.
984 patents
EBARA CORPORATION
983 patents
FOXCONN INTERCONNECT TECHNOLOGY LIMITED
974 patents
ASUSTEK COMPUTER INC.
970 patents
What this shows L'air holds 988 patents at rank #458, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #458 in granted patent volume.
Other assignees with the most granted patents in L'air's primary technology class.
L'air's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
64 Top 2% higher than 98% 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 | 70 | 7.1% |
| 2016 | 79 | 8.0% |
| 2017 | 95 | 9.6% |
| 2018 | 93 | 9.4% |
| 2019 | 99 | 10.0% |
| 2020 | 88 | 8.9% |
| 2021 | 86 | 8.7% |
| 2022 | 103 | 10.4% |
| 2023 | 94 | 9.5% |
| 2024 | 118 | 11.9% |
| 2025 | 63 | 6.4% |
Top 15 of 196 technology areas
Overall rank by patents
#458
Across all tracked assignees
63.9 out of 100
How to use this portfolio
L'air's 988 grants land it in the top 2% 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.