Kneaders and High Viscosity Mixing Patents: Leaders & Trends 2026
Kneaders and high viscosity mixing patents: who is filing, and where the claim space is still open
Filing has plateaued, not slowed. 2021 and 2024 both sit at 17 filings, a 0% span, while 2022 remains the peak year at 28 — read the tail years as undercounted given the usual 18-month publication lag. Filings held at 17 in both 2021 and 2024 (0% over that span), with 2022 as the peak year so far at 28. The most recent years in the chart understate true filing activity because publication typically lags filing by around 18 months, so 2025 and 2026 have not yet caught up.
- 1MAAG GALA INC98
- 2EASTMAN CHEM CO20
- 3DOW TORAY CO LTD19
- 4ASAHI KASEI KOGYO KABUSHIKI KAISHA17
- 5ZEON CORP13
See the full kneaders and high viscosity mixing 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 this landscape
Who holds the most patents in kneaders and high viscosity mixing?
One assignee leads the ranked list with 98 records, well ahead of fifth place at 13 and tenth place at 9, across the 100 companies in this dataset’s ranking. That gap indicates a single filer has built a large, defensive patent position in this space while the rest of the field holds comparatively small, single-digit portfolios. Anyone evaluating freedom to operate should check that leader’s portfolio first, since it accounts for a disproportionate share of the ranked filings.
Is patent filing in kneader and mixing technology growing or slowing?
Filings held flat between 2021 and 2024, both years posting 17 filings for a 0% change over that span, with 2022 the peak year so far at 28. It would be a mistake to call the more recent years a decline, because patent publication typically lags actual filing by around 18 months, so 2025 and 2026 figures are still incomplete. Based on the complete-year data available, the honest read is a plateau rather than growth or decline.
What technology areas dominate kneader and mixing patent claims?
The dominant IPC classes are all on the materials and shaping side: C08L polymer compositions appears in 84.7% of the 150 records in scope, B29C plastics shaping in 64.0%, and C08K polymer additives in 61.3%. This means claim density concentrates on what is being mixed and shaped as much as on the mixing hardware itself. Adhesives (C09J) and addition polymers (C08F) carry comparatively lighter coverage, at 26.7% and 28.0% of records respectively.
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 Kneaders and High Viscosity Mixing 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.