Fluoropolymer Wet-Process Patents: Leaders & White Space 2026
- Filing has cooled since its 2024 peak. Seven records filed in 2024 against zero at the 2022 midpoint — the growth curve is flat to declining, not accelerating, across the 2015–2026 window.
- One legacy family still anchors the field. The most-cited records are all variants of the same "melt-processable fluoroplastic" disclosure, with citation counts (48, 42, 36) far above the rest of the corpus.
- Coatings and shaping classes rival the polymer-composition core. C09D coatings (40.9% of the 44 records) and B29C shaping (34.1%) sit close behind C08L polymer compositions (52.3%), showing claim activity spread across formulation and processing rather than locked into one class.
What this landscape covers
Fluoropolymer wetted parts — PFA fittings, PTFE seals, welded joints and molded components — are the materials layer that keeps semiconductor wet-process chemistries from leaching metal or particles into the process stream. This landscape tracks 44 published records filed against claim language covering metal extractables, permeation, welding, fitting integrity, high-purity molding and particle shedding for fluoropolymer or PTFE/PFA wetted parts. Publication lags filing by roughly 18 months, so the most recent year in the trend understates real filing activity.
The record set spans 2015 through the 2026-07-31 cut-off, with receiving-office activity concentrated in Europe and the United States and a smaller PCT and Canadian tail. Because families neutralise duplicate continuation and multi-jurisdiction filing, the 44 records here are treated as families throughout the ranking.
Filing trend and technology composition
Two views of the same 44-record set: filings by year, and the IPC subclasses those filings carry. Because a single record can carry several IPC classes, the class shares below sum to well over 100% of the record total — that is expected and not a data error.
A peak in 2024, then a drop-off
Filings ran at 2 in 2017, sat at zero at the 2022 midpoint, then rose to a peak of 7 in 2024 before the partial, still-incomplete 2026 count. Read the flat-to-declining shape as a maturing claim space rather than a growing one — new entrants are not pushing volume up.
Polymer composition leads, but coatings and shaping are close behind
C08L polymer compositions cover 52.3% of the 44 records, C09D coatings and inks 40.9%, and B29C shaping of plastics 34.1%. The presence of B32B layered products at 11.4% signals that laminate and multi-layer wetted-part constructions are a smaller but still active claim area.
Shares are the percentage of the 44 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Fluoropolymer Components for Semiconductor Wet Process with Eureka
This page is one run against one query. Ask Eureka your own question about fluoropolymer components for semiconductor wet process and every answer comes back with the patent numbers behind it.
Try EurekaThe records other filings build on
High Flow Polystyrene Resins, Compositions Thereof and Methods of Making
A polymer composition includes a matrix polymer component including a polystyrene polymer, and 0.005 wt% to 9 wt% of a fluoropolymer component including a fibrillated fluoropolymer, a fibrillated fluoropolymer encapsulated by an encapsulating polymer, or a combination thereof. The composition is bounded by a weight average molecular weight below 193,000 g/mol (GPC, polystyrene standards) and a tensile modulus between 3300 and 3800 MPa (ISO 527). Methods of forming the composition are also claimed.Filed by SHPP Global Technologies B.V., dated 2026-07-30 — the newest record in scope.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US5549948A | Melt-processable fluoroplastic | 48 |
| 2 | US6346328B1 | Composite articles including a fluoropolymer | 42 |
| 3 | US5527858A | Melt-processable fluoroplastic | 36 |
| 4 | US20090288962A1 | Electrochemical Sensor and Methods for Making and Using Same | 16 |
| 5 | WO1996007700A1 | Melt-processable fluoroplastic | 13 |
| 6 | US20100331482A1 | Composition for coating agent | 9 |
| 7 | WO2000006376A1 | Composite articles including a fluoropolymer | 6 |
| 8 | US20130004755A1 | Coating composition, method for manufacturing film using the same, and coated article using the same | 5 |
| 9 | US20170152395A1 | Coating composition, method for manufacturing film using the same, and coated article using the same | 3 |
| 10 | US20130184399A1 | Composition for coating agent | 3 |
Citation counts inside this corpus favour older filings and should be read as a signal of influence on later claim drafting, not as evidence that a record is current or commercially dominant today.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three readings of the same dataset, aimed at where the claim space is dense and where it is thin.
The peak has already passed
Filings rose to 7 in 2024 from zero at the 2022 midpoint, then the partial 2026 count trails off. A single peak year followed by decline is not the signature of an emerging technology — it reads as a claim space that has already been staked out and is now being maintained rather than expanded.
One family still sets the terms
The most-cited record and its close variants, all titled around "melt-processable fluoroplastic", carry citation counts far above the rest of the set (48, 42, 36 versus 16 and below for the next tier). Anyone drafting around melt-processable fluoroplastic composition claims is drafting around this lineage first.
Composition claims dominate; laminate claims are thinner
C08L polymer-composition claims appear in 52.3% of the 44 records, but B32B layered-product claims appear in only 11.4%. That gap suggests multi-layer or laminate wetted-part constructions are claimed far less densely than the base polymer formulation itself.
Europe edges the US as filing venue
Europe (EPO) accounts for 15 filings against 12 in the United States, with a smaller WIPO/PCT and Canadian tail. A filer entering this space needs European freedom-to-operate clearance at least as much as US clearance.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to fluoropolymer components for semiconductor wet process, with the prior art for and against each one.
The ranked leaders and the tail behind them
The assignee ranking returned by the data endpoint covers 9 companies, led by a filer with 10 records and a fifth-place holder at 7 — this is the complete ranking the dataset returns, not a top-50 or top-100 cut.
A fluoropolymer specialist sets the pace
The top-ranked filer sits well ahead of the field at 10 records, with the strongest co-assignee pairing in the dataset linking it to a second Japanese fluoropolymer maker at a count of 10 joint filings — evidence of a long-running collaborative filing relationship rather than independent overlap.
A tight cluster behind the leader
The gap from first to fifth place is narrow — 10 down to 7 — meaning no single filer holds a runaway share of the ranked set. Diversified materials and specialty-chemical firms occupy these mid-table positions alongside the fluoropolymer specialists.
No ranked assignee is filing in the most recent year
Every ranked assignee shows zero filings in the latest year captured. Given the 18-month publication lag, this likely understates real activity, but it is also consistent with the broader flat-to-declining trend from the 2024 peak.
| Assignee | Recent year | YoY |
|---|---|---|
| DuPont-Mitsui Fluorochemicals Co., Ltd. | 0 | — |
| Nippon Fusso Co., Ltd. | 0 | — |
| DYNEON LLC | 0 | — |
| SHPP Global Technologies B.V. | 0 | — |
| AGC Inc. | 0 | — |
| 3M Company | 0 | — |
| PPG Industries Ohio, Inc. | 0 | — |
| Battelle Memorial Institute | 0 | — |
Where to take this analysis
The dataset points to a mature, EPO-and-US-weighted claim space anchored by one older fluoroplastic lineage. Three directions follow from that.
Clear freedom-to-operate on melt-processable fluoroplastic claims
The most-cited records in this set define the terms for melt-processable fluoroplastic composition claims. Any new wetted-part formulation should be checked against this lineage before filing.
Run a freedom-to-operate search in EurekaWatch the under-claimed laminate and weld-integrity branches
B32B laminate claims and weld/fitting-integrity language appear far less often than core polymer-composition claims. That gap is where new claim space is still open.
Explore white space in EurekaTrack the co-filing relationship at the top of the ranking
The strongest co-assignee pairing in the dataset links two of the leading filers across 10 joint records — a relationship worth monitoring for future joint filings or licensing moves.
Monitor assignee activity in EurekaCommon questions on this landscape
The ranked leader in this 44-record dataset holds 10 records, with the fifth-ranked assignee at 7 — a full ranking of 9 companies rather than a long tail of hundreds. The most-cited individual records, all built around a "melt-processable fluoroplastic" disclosure, sit apart from the ranking and are cited far more heavily (48, 42, 36 citations) than any other record in the set, which makes that lineage the starting point for any clearance search. The strongest co-assignee pairing in the data links the top filer to a second fluoropolymer specialist across 10 joint filings, suggesting a longstanding collaborative filing arrangement between the two.
Filing peaked at 7 records in 2024 after sitting at zero at the 2022 midpoint, and the partial 2026 count trails off further. That shape — a single recent peak followed by decline — reads as a claim space that has already been staked out rather than one still expanding. Because publication lags filing by roughly 18 months, the most recent year understates true activity, but the broader flat-to-declining trend from 2015 through 2026 still holds.
C08L polymer compositions is the densest class, present in 52.3% of the 44 records in scope, followed by C09D coatings and inks at 40.9% and B29C shaping of plastics at 34.1%. Because a single record can carry several IPC codes, these shares add up to more than 100% of the record total — that is expected, not an error. Laminate and multi-layer construction claims under B32B are comparatively thin at 11.4%, marking a lighter-claimed branch relative to the composition and coating core.
The clearest gap sits between the heavily claimed C08L polymer-composition and C09D coating classes and the much thinner B32B laminate class at 11.4% of records. Sub-areas such as multi-layer laminate wetted parts, weld-joint particle-shedding control and fitting integrity under thermal cycling show up far less often in the claim language than base polymer formulation does. A first claim in one of these branches would likely combine a specific processing or joint-integrity parameter with the fluoropolymer composition, rather than restating the base composition itself.
US20260216930A1, filed by SHPP Global Technologies B.V. and dated 2026-07-30, claims a polystyrene matrix polymer composition containing 0.005 wt% to 9 wt% of a fluoropolymer component — specifically a fibrillated fluoropolymer, optionally encapsulated by another polymer. The claim is bounded by two measurable properties: a weight average molecular weight below 193,000 g/mol by GPC, and a tensile modulus between 3300 and 3800 MPa by ISO 527. It is the newest record in this dataset and sits in the polystyrene-matrix compounding space rather than the older melt-processable fluoroplastic lineage that dominates the citation table.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.