Hydrogen Sulfide Scavengers Patents: Top Companies & Trends 2026
Hydrogen Sulfide Scavenger Patents: Who Leads and Where the Field Is Still Open
49.2% concentration at the top. The top 5 assignees hold 126 of 256 records in scope — a field with a clear leading group rather than one dominant filer. Filings peaked in 2017 at 32 records and fell back before climbing again from 2021 (3 records) to 2024 (21 records), a documented +600% rise over that three-year span. 2025 and 2026 figures are still filling in as publication lags filing by roughly 18 months, so the most recent years should not be read as a slowdown.
- 1ECOLAB USA INC34
- 2BAKER HUGHES CO29
- 3NALCO CO26
- 4KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS24
- 5GENERAL ELECTRIC CO13
See the full hydrogen sulfide scavengers 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 about hydrogen sulfide scavenger patents
Who holds the most hydrogen sulfide scavenger patents?
The dataset’s top-ranked assignee holds 34 of the 256 records in scope, with the fifth-ranked assignee at 13 and the tenth at 9. The top 5 assignees combined account for 49.2% of all records (126 of 256), and the top 10 account for 69.5% (178 of 256). This is a leading cohort rather than a single dominant filer, so competitive monitoring should cover several companies, not just the top name.
What is a hydrogen sulfide scavenger and how is it typically claimed?
A hydrogen sulfide scavenger is a chemical, most commonly a triazine-based compound, injected into a gas, oil, or water stream to remove or neutralise H2S. Patent claims in this field are dominated by separation-process framing (B01D, 53.1% of records) and hydrocarbon refining framing (C10G, 41.0% of records), meaning most filings describe the scavenger as part of a process or system rather than as a standalone composition. Drilling-related applications (E21B) and fuel-stream applications (C10L) form secondary but significant claim areas.
Has patent filing for hydrogen sulfide scavengers grown recently?
Yes, over the most reliable complete-year window: filings rose from 3 records in 2021 to 21 records in 2024, a documented increase of 600%. The field’s overall peak so far is 2017 at 32 records. Figures for 2025 and 2026 are still incomplete because publication typically lags filing by around 18 months, so those years should not be read as a decline.
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 Hydrogen Sulfide Scavengers 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.