Intelligent Packaging Line Integration Patent Landscape
The intelligent packaging line integration patent space is a small, China-dominated field in which no single applicant holds an commanding share — the top five filers account for only 17% of the hundred largest filers’ combined total. Activity peaked in 2021 and has since eased, signalling a field past its initial burst of innovation where differentiated technical positions are still available.
A fragmented, China-centric field with no dominant incumbent
Photon Robot (Ningbo) Co Ltd leads the ranking with 7 patent families, followed closely by Jiangsu Sanjo Intelligent Tech Co Ltd with 5. The field remains highly fragmented: the top five filers collectively hold only 17% of the hundred largest filers’ combined total, indicating that no single organization has established a commanding position.
The tier gap between the leader and the broader applicant pool is narrow — the majority of ranked filers hold just 1–2 patent families each. This flat distribution means competitive barriers from sheer portfolio scale are low, and technical differentiation at the patent level matters more than portfolio breadth.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Photon Robot (Ningbo) Co Ltd | 7 | |
| 2 | Jiangsu Sanjo Intelligent Technology Co Ltd | 5 | |
| 3 | Wenzhou Senman Intelligent Packaging Equipment Co Ltd | 3 | |
| 4 | Jingde County Wanfang Daily Necessities Co Ltd | 3 | |
| 5 | Shanghai Kangdi Mechanical Technology Co Ltd | 2 | |
| 6 | Foshan Dexun Packaging Machinery Co Ltd | 2 | |
| 7 | Qingdao Hongyu Computer Trademark Co Ltd | 2 | |
| 8 | Shanghai Nibai Environmental Technology Development Co Ltd | 2 | |
| 9 | Fuzhou Youlike Biotechnology Co Ltd | 2 | |
| 10 | Changzhou Jiji Enterprise Services Co Ltd | 2 |
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 11 | Chongqing Bozhang Mechano-Electronics Equipment | 2 | |
| 12 | Zhejiang Saifeng Mechanical Technology Co Ltd | 2 | |
| 13 | Shenzhen Linghang Power Technology Co Ltd | 2 | |
| 14 | Weishan County Yongda Packaging Materials Co Ltd | 2 | |
| 15 | Guangdong Jinsheng Intelligent CNC Co Ltd | 2 | |
| 16 | Suzhou Youshunlong Packaging Co Ltd | 2 | |
| 17 | Shenzhen Kunyu Power Technology Co Ltd | 1 | |
| 18 | Huaian Kuailu Dingcheng Medical Packaging Products Co Ltd | 1 | |
| 19 | The First Affiliated Hospital of Xiamen University | 1 | |
| 20 | AFD (Shenyang) Automation Technology Co Ltd | 1 |
The positions of Photon Robot (Ningbo) and Jiangsu Sanjo, both new entrants by momentum data, suggest the current ranking reflects recent activity rather than a long-established order, leaving room for focused new entrants to displace early leaders with targeted filings.
The most recent 18–24 months of filing data are subject to publication lag and will undercount actual activity; apparent low volume in 2025–2026 does not necessarily reflect reduced R&D output. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A 2021 filing peak, B65B core dominance, and thin adjacent coverage
Two structural observations emerge from the evidence: annual filing volume surged to a peak in 2021 then eased sharply, and the technology mix is heavily concentrated in core packaging and wrapping (B65B), with labelling, conveying, and sorting branches receiving only marginal coverage.
Annual filing trend
Filings climbed from 2 in 2017 to a peak of 28 in 2021, then contracted to 13 in 2022 and 3 in 2023 before a partial rebound to 25 in 2024. The 2025 and 2026 values are incomplete due to publication lag and should not be read as further decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
B65B (Packaging & wrapping) dominates the technology mix by a wide margin, followed by B65C (Labelling & franking) and B65G (Conveying & material handling) at much lower levels. Branches such as B07C (Postal & object sorting), G16Y (IoT data processing), and G01M (Testing) each appear only once or twice, indicating that integration with sorting, IoT, and quality-inspection functions is largely uncharted in the patent record.
↗ 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.
Plastic bag packaging and separation device for in…
The present disclosure relates to a plastic bag packaging and separating device for an intelligent packaging toilet in the technical field of intelligent toilets. The plastic bag packaging and separating device includes a synchronous belt, a driving shaft, a motor, guide rods, a gathering mechanism, roller assemblies, a hot melting base, and a hot melting… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | 智能包装机及其控制方法 | 24 |
| 2 | 智能包装机 | 18 |
| 3 | 一种智能包装流水线 | 15 |
| 4 | 一种智能包装机 | 14 |
| 5 | 一种智能包装一体机 | 13 |
| 6 | 智能包装流水线 | 13 |
| 7 | 机械手接送棉签、定量加药智能化包装机 | 13 |
| 8 | 现场生成式智能包装系统及其打包方法 | 12 |
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.
What the competitive structure means for R&D investment decisions
The combination of a post-peak lifecycle, low concentration, geographic skew toward. China, and thin adjacent-branch coverage shapes the risk/reward calculus for any new entrant or incumbent expanding their portfolio.
Past-peak: the initial innovation burst has subsided
Annual filings peaked in 2021 and have since eased, placing this field in a decline phase by lifecycle evidence. The field is not moribund — a partial rebound appeared in 2024 — but the era of rapidly accumulating foundational filings has passed. R&D investment should target differentiated sub-functions (labelling integration, IoT-linked quality control) rather than broad platform claims that would compete with an established body of B65B prior art.
Post-peak · 2021 highFragmented field; low portfolio barriers to entry
The top five filers hold only 17% of the hundred largest filers’ combined total, and most ranked applicants hold just 1–2 patent families. This flat distribution means that a focused filing program of even 5–10 well-crafted families could establish a meaningful ranked position. The risk is freedom-to-operate rather than blocking by a concentrated incumbent.
Low concentrationOne active co-filing partnership identified: Jiangsu Sanjo and Photon Robot (Ningbo)
The only documented co-applicant relationship in evidence is between Jiangsu Sanjo Intelligent Tech Co Ltd and Photon Robot (Ningbo) Co Ltd, who have jointly filed 5 patent families. This partnership between the field’s top two filers suggests a degree of coordinated IP development; potential partners or licensees should assess whether this joint portfolio creates a combined blocking position in core B65B sub-classes.
1 active co-filing pairChina accounts for nearly all filing activity; international coverage is thin
China hosts 104 of the patent records in scope, with Europe (EPO) at 3 and the United States at 2. South Korea appears with 1 record. This means that technology developed in this space has minimal patent protection outside China, presenting both an opportunity (freedom to operate in Western markets) and a risk (limited insight into non-Chinese R&D directions). Organizations targeting European or North American markets should consider independent prior-art searches in those jurisdictions.
China-centric · 104 CN recordsGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
| Applicant | Collaborator | Co-filings |
|---|---|---|
| Jiangsu Sanjo Intelligent Technology Co Ltd | Photon Robot (Ningbo) Co Ltd | 5 |
Co-filing pairs, ranked by the number of jointly-filed patent families.
Photon Robot (Ningbo) and Jiangsu Sanjo lead a closely matched top tier
Both top-ranked applicants are classified as new entrants by momentum data, indicating recent and rapid portfolio build-up rather than a long-standing IP position. Their shared technology focus and documented co-filing relationship make them the field’s most strategically significant actors.
Photon Robot (Ningbo) Co Ltd
The top-ranked applicant holds 7 patent families and is classified as a new entrant by momentum data, meaning its position reflects a fast, recent filing program rather than a legacy portfolio. Its technology focus spans A47K 11 (sanitary and bathroom equipment), B65B 9, and B65B 51 (packaging and wrapping sub-classes), suggesting integration of packaging automation with hygiene-product applications. The co-filing relationship with Jiangsu Sanjo strengthens its effective footprint beyond its standalone count.
families: 7Jiangsu Sanjo Intelligent Tech Co Ltd
Jiangsu Sanjo holds 5 patent families and shares the new-entrant momentum classification, pointing to a similarly rapid recent build-up. Its technology emphasis mirrors that of Photon Robot (Ningbo) — A47K 11, B65B 9, and B65B 51 — consistent with the documented joint filing activity. As co-filers, the two firms together represent the most concentrated IP cluster in the corpus, and their combined position in hygiene-product packaging sub-classes is worth monitoring for potential licensing or blocking risk.
families: 5| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Jiangsu Sanjo Intelligent Technology Co Ltd | 5 | ▲ new entrant |
| Photon Robot (Ningbo) Co Ltd | 5 | ▲ new entrant |
| Chongqing Bozhang Mechano-Electronics Equipment Co Ltd | 2 | ▲ new entrant |
| Suzhou Youshunlong Packaging Co Ltd | 2 | ▲ new entrant |
Labelling integration and conveying automation are under-served relative to core packaging
The technology composition shows that branches immediately adjacent to the dominant B65B core — particularly B65C (labelling) and B65G (conveying) — have sparse patent coverage, while B07C (sorting) and G16Y (IoT data processing) are nearly absent. These represent observations of relative sparsity; some carry plausible entry paths for technically adjacent work.
B65C · Labelling & franking integration
With only 10 patent records in this branch against 110 in B65B, in-line labelling and franking as an integrated sub-system is comparatively sparse. Labelling is a natural downstream step in any packaging line and its integration with machine-vision quality checks is a realistic technical extension of existing B65B packaging automation work. An applicant with conveyor or vision-system capabilities could file in B65C sub-classes with limited blocking risk from the current corpus.
Search this in Eureka →G16Y · IoT data processing for packaging lines
Only a single patent record appears under G16Y (IoT data processing), despite IoT-linked monitoring and traceability being a commercially relevant feature for modern packaging operations. This sparse coverage reflects an observation of white space rather than a guaranteed commercial opportunity, but the combination of near-zero prior art in G16Y with active B65B infrastructure filings suggests a plausible entry path for applicants targeting smart-factory or Industry 4.0 packaging-line monitoring claims.
Search this in Eureka →How leading applicants differ by technology sub-class emphasis
Route coverage across the main technology branches in the current evidence set.
| Player | B65B 51 · Packaging & wrapping | B65B 61 · Packaging & wrapping | B65B 57 · Packaging & wrapping | B65B 35 · Packaging & wrapping | B65B 43 · Packaging & wrapping |
|---|---|---|---|---|---|
| Shanghai Nibai Environmental Technology Development Co Ltd | Strong · 2 | Strong · 2 | Strong · 2 | Absent | Strong · 2 |
| Jingde County Wanfang Daily Necessities Co Ltd | Strong · 3 | Absent | Absent | Strong · 2 | Strong · 2 |
| Wenzhou Senman Intelligent Packaging Equipment Co Ltd | Strong · 3 | Strong · 3 | Absent | Absent | Absent |
| Shanghai Kangdi Mechanical Technology Co Ltd | Strong · 2 | Strong · 2 | Absent | Absent | Absent |
| Shanghai Qingyu Technology Co Ltd | Strong · 2 | Strong · 2 | Absent | Absent | Absent |
| Zhejiang Saifeng Mechanical Technology Co Ltd | Strong · 2 | Strong · 2 | Absent | Absent | Absent |
| Jiankang Medical Technology Co Ltd | Absent | Strong · 1 | Strong · 1 | Strong · 1 | Strong · 1 |
Frequently asked questions
The corpus in scope contains 105 patent families. Activity peaked in 2021 with 28 filings in that year before easing; the most recent years (2025–2026) are incomplete due to publication lag.
Photon Robot (Ningbo) Co Ltd is the top-ranked applicant with 7 patent families, followed by Jiangsu Sanjo Intelligent Tech Co Ltd with 5. Both are classified as new entrants by momentum analysis, indicating rapid recent portfolio build-up.
The lifecycle evidence places the field in a decline stage: annual filings peaked in 2021 and have since eased. A partial rebound to 25 filings appeared in 2024, but the overall trend from the 2021 peak is downward. Publication lag means 2025–2026 data are not yet complete.
China dominates with 104 patent records in scope. Europe (EPO) has 3 records, the United States has 2, and South Korea has 1. International patent protection outside China is therefore very limited.
The dominant IPC class is B65B (Packaging & wrapping), which accounts for the large majority of records. Adjacent branches with lower coverage include B65C (Labelling & franking), B65G (Conveying & material handling), B07C (Postal & object sorting), and G16Y (IoT data processing).
The only documented co-applicant relationship in the corpus is between Jiangsu Sanjo Intelligent Tech Co Ltd and Photon Robot (Ningbo) Co Ltd, who have jointly filed 5 patent families. This is the single most active collaboration identified in the evidence.
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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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