Compostable Form-Fill-Seal Patent Snapshot 2026
The dedicated patent corpus for compostable form-fill-seal packaging is embryonic: all activity is concentrated in China, with two first-mover filers entering in 2024. The global white space is essentially unoccupied, signalling a very early-stage field with no established incumbents outside mainland China.
Two Chinese first-movers hold the entire ranked corpus
Changzhou Bojiang New Materials Technology Co., Ltd. leads the applicant ranking with 2 patent families, followed by CSSC Systems Engineering Research Institute with 1 patent family — together accounting for the complete top-100 ranked applicants’ combined total.
Concentration is absolute: the top five filers’ share of the ranked applicants visible in this query stands at 100%, and the tier gap between the leader and all other potential entrants is effectively infinite, since no further applicants appear in the corpus.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Changzhou Bojiang New Materials Technology Co., Ltd. | 2 | |
| 2 | CSSC Systems Engineering Research Institute | 1 |
The leaders’ positions imply first-mover advantage without competitive pressure — neither entity faces a rival patent thicket to navigate, but neither has the scale to signal a defended territory that would deter new entrants from outside. China.
All filings cluster in 2024, meaning the entire corpus falls within the publication-lag window; additional families from this cohort may not yet be publicly visible. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A single filing cohort in 2024 defines all known activity
The annual trend chart and technology composition chart together characterise a field that is both temporally and technically narrow, with the entire corpus arising from one calendar year and spanning only three IPC branches.
Annual filing trend
Zero activity is recorded from 2017 through 2023; all 3 patent families were filed in 2024. The 2025–2026 bars are empty, but given standard publication lag of 18–24 months, families filed in late 2024 and 2025 are likely still unpublished. No trend inference is possible from a single-year spike.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B65B (Packaging & wrapping) is visible in with 2 records, reflecting the core form-fill-seal sealing machinery focus. A47K (Sanitary & bathroom equipment) and B29C (Shaping of plastics) each contribute 1 record, suggesting early exploration of adjacent application and process domains.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
生物降解膜高精密低压热封机构及热封方法
本发明涉及生物降解膜加工技术领域，更具体地说，涉及一种生物降解膜高精密低压热封机构及热封方法，包括：相对配合设置的上热封压头部件和下热封压头部件，以及用以驱动上热封压头部件靠近或远离下热封压头部件的驱动部件；上热封压头部件包括：与驱动部件连接的上压头座，以及连接在上压头座上的弹性压缩体；下热封压头部件包括：设置在加工台上的下压头座，以及连接在下压头座上的热封刀，热封刀配合设置在弹性压缩体的正下方。通过设置可进行不同幅度压缩变形的弹性压缩体，调节热封时的压力，实现热封压力的精准控制，有效保证生物降解膜的热封效果。 (excerpt from the patent abstract)
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Changzhou Bojiang New Materials Technology Co., Ltd.
Holds 2 patent families — the largest position in the corpus. Technology emphasis spans B29C 65 (plastic shaping/joining) and B65B 51 (packaging sealing), indicating work on both material processing and finished packaging machinery. Trajectory is flagged as a new entrant with no prior filing history in this domain.
families: 2CSSC Systems Engineering Research Institute
Holds 1 patent family with a notably different technical profile: A47K 11 and A47K 17 (sanitary and bathroom equipment) alongside B65B 51 (packaging sealing), suggesting an application focus beyond standard food or consumer packaging. Also a new entrant with no prior baseline in this field.
families: 1Frequently asked questions
The corpus contains 3 patent families in scope. All were filed in 2024, and all are registered in China. Given standard publication lag of 18–24 months, additional families from late 2024 and 2025 filings may not yet be publicly visible.
Changzhou Bojiang New Materials Technology Co., Ltd. leads with 2 patent families. CSSC Systems Engineering Research Institute holds 1 patent family. These two entities together account for the entire ranked applicant corpus.
All 3 patent records are filed in China. No filings in the US, Europe, Japan, or via the PCT route appear in the current corpus. The global jurisdictional space outside China is unoccupied at the dedicated patent level.
The corpus spans three IPC classes: B65B (Packaging & wrapping) with 2 records, and A47K (Sanitary & bathroom equipment) and B29C (Shaping of plastics) each with 1 record. B65B represents the core form-fill-seal machinery domain.
Based on the available corpus, the field is nascent. A lifecycle stage cannot be formally classified given that all known activity originates from a single cohort in 2024. There are no established incumbents, no multi-year filing trend, and no international patent protection — all indicators of a pre-commercial, early-emergence phase.
No co-applicant or co-filing relationships are present in the evidence. Both active filers are operating independently. The absence of collaboration may reflect the very early stage of the field rather than a deliberate strategy.
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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.
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