Toothpaste Abrasive & Fluoride Patents: Who Leads, Gaps 2026
Toothpaste Abrasive and Fluoride System Patents: Concentration at the Top
82.8% of the field sits with five filers. 125 of 151 records in scope belong to the top five assignees, with one leader alone holding 58 — a filing pattern with almost no open middle tier. Annual output rose to a peak of 10 records in 2022, then fell; the 2021-to-2024 window shows a 50% decline. Because publication typically lags filing by around 18 months, the 2025 and 2026 figures are not yet complete and should not be read as continued decline.
- 1COLGATE PALMOLIVE CO58
- 2J M HUBER CORP44
- 3PROCTER & GAMBLE CO13
- 4RICHARDSON VICKS INC5
- 5NOVAFLUX INC5
See the full toothpaste abrasive and fluoride systems 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
Frequently asked questions
Who holds the most patents in toothpaste abrasive and fluoride compatibility technology?
The ranked list covers 28 companies and is led by a single assignee holding 58 of the 151 records in scope, which is more than a third of the entire field. The next four ranked assignees bring the top-five combined total to 125 records, or 82.8% of all records in scope. After the top five, the ranking falls off quickly — fifth place holds 5 records and tenth place holds only 2 — so the competitive picture is one dominant leader plus a long tail of smaller filers rather than a broad, even field.
Is toothpaste abrasive and fluoride patent filing still growing?
No, filing activity peaked at 10 records in 2022 and has since declined; the tracked window from 2021 to 2024 shows a 50% drop. That said, publication typically lags filing by about 18 months, so the 2025 and 2026 figures in this dataset are still incomplete and should not be read as continued decline. Based on the complete years through 2024, the honest read is that the field has slowed from its early-2020s peak rather than that it is accelerating.
What does US4421527A actually cover?
US4421527A, assigned to J. M. Huber Corporation and granted in 1983, covers precipitated silicon dioxide abrasive compositions reacted with 10 to 300 parts per million of an alkaline earth metal ion, particularly calcium, specifically to minimize the abrasive’s interaction with fluoride ion sources in therapeutic toothpaste. It is one of the most-cited records in this field, with 230 citations, and sits alongside two closely related Huber filings (US4340583A and US4420312A) that together anchor fluoride-compatible silica abrasive claims across the industry. Anyone formulating a calcium-treated or alkaline-earth-treated silica abrasive for fluoride compatibility should review this family closely.
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 Toothpaste Abrasive and Fluoride Systems 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.