Compressor energy recovery and heat utilization patents: who holds the claims and where they thin out
68.8% concentration. The top 5 assignees combined hold 117 of the 170 records in scope — a field where a handful of players have staked most of the ground. Annual filings rose to a peak of 23 in 2019, then eased; the 2021-to-2024 window shows a 17% decline in filings, the last span long enough to be read as complete given publication lag. Counts for 2025 and 2026 are still incomplete and should not be read as a continued drop.
- 1LIGHTSAIL ENERGY INC63
- 2ENERSIZE OY24
- 3KNORR BREMSE SYSTEME FUER NUTZFAHIZEUGE GMBH13
- 41ST AVENUE NOVA LLC9
- 5ILLINOIS TOOL WORKS INC8
See the full compressor energy recovery and heat utilization analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions on this landscape
Who are the leading patent holders in compressor energy recovery and heat utilization?
The dataset ranks 40 companies, with the top-ranked assignee alone holding 63 of the 170 records in scope. The top 5 assignees combined account for 117 records, or 68.8% of the field, and the top 10 reach 85.9%. That means the leader board is short: a handful of companies control most of the claim space, while the remaining ranked assignees each hold a small number of records.
What technology areas dominate compressor energy recovery patents?
F04B positive-displacement pumps is the largest single IPC class at 30.0% of the 170 records, followed by F01B reciprocating machines at 18.2% and G05B control and regulating systems at 17.6%. Because a single record can carry multiple IPC classes, these percentages overlap rather than sum to 100%. The overlap itself is informative — it shows that many filings pair mechanical compressor claims with digital control claims in the same family.
Is patent filing activity in this field growing or slowing down?
Filings peaked at 23 in 2019 and the most recent complete three-year span, 2021 to 2024, shows a 17% decline. That is a real pull-back from the earlier peak, though it should not be read as the field going cold: publication typically lags filing by around 18 months, so the 2025 and 2026 counts in this dataset are still incomplete and will rise as more filings publish.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Compressor Energy Recovery and Heat Utilization covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.