Demulsifiers & Production Chemicals Patents: Leaders, Trends 2026
Demulsifiers and Production Chemicals Patents: Who Holds the Emulsion-Breaking Claims
A 2019 peak of 15 filings has not been repeated. activity fell to 4 filings in 2021 and the evidence shows a -100% shift into 2024, the last year publication lag lets you read cleanly. Filings rose to a peak of 15 in 2019 before falling back; the 2021-to-2024 span shows 4 filings collapsing to 0, a -100% change the dataset states directly. Years after 2024 are still filling in under publication lag and should not be read as a continued decline.
- 1ECOLAB USA INC20
- 2EXXONMOBIL TECHNOLOGY & ENGINEERING CO7
- 3SAUDI ARABIAN OIL CO7
- 4DOW GLOBAL TECHNOLOGIES LLC4
- 5INST MEXICANO DEL GASOLINEEO4
See the full demulsifiers and production chemicals 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 demulsifier and production chemical patents
Who holds the most patents in demulsifier and production chemical technology?
Within the 9 companies in the ranked leaders list, one assignee holds 20 records, well ahead of a fifth-place count of 4. That gap indicates a concentrated portfolio built by a single filer rather than an evenly split field. The list is not a top-50 or top-100 ranking; it is the complete set of assignees the dataset returns for this scope, so any filer outside it published fewer records than the field captured here.
Is patent filing in this space growing or shrinking?
Filing peaked at 15 records in 2019 and has not returned to that level since. The dataset’s own growth figure covers 2021 (4 records) to 2024 (0 records), a -100% change, and 2024 is the last year that can be read as complete. Years after 2024 are still accumulating publications under the normal 18-month lag between filing and publication, so they should not be read as confirming a further slowdown.
What technology areas do most demulsifier patents cover?
Most records sit in C10G, hydrocarbon oils and refining, which covers 76.6% of the 47 records in scope, and B01D, separation processes, which covers 53.2%. Because a single record can carry several IPC classes, these figures overlap rather than summing to 100%. Corrosion control, water treatment, general materials and flow measurement each appear in a small minority of filings, making them comparatively less contested.
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 Demulsifiers and Production Chemicals 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.