Optical Bonding Patents: Leader, Long Tail & Trends 2026
Optical Bonding and Lamination Process Patents: Who Holds the Claim Space
One filer holds 67 of 293 records, and the top 5 combined account for 44.7% of all records in scope — this field is concentrated, not fragmented. Filings climbed to a peak of 59 records in 2020, then declined; the 2021-to-2024 span shows a -69% drop from 29 to 9 records. Treat 2025 and 2026 figures as incomplete rather than as evidence of continued decline, since publication typically lags filing by around 18 months.
- 1MITSUBISHI GAS CHEM CO INC67
- 23M INNOVATIVE PROPERTIES CO20
- 3MORROW NV17
- 4AMAZON TECH INC14
- 5EI DU PONT DE NEMOURS & CO13
See the full optical bonding and lamination process 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 optical bonding and lamination patents
Who are the leading patent holders in optical bonding and lamination?
The dataset ranks 86 companies with published records in this space, and the field is concentrated rather than fragmented: the top-ranked assignee alone holds 67 of the 293 records in scope, and the top 5 assignees combined hold 44.7% of all records. Beyond roughly the top ten filers, holdings drop off sharply into a long tail of companies with only a handful of filings each. This structure means a new entrant is really competing against a small number of deep portfolios, not a broad, even field of peers.
Is patent filing activity in optical bonding still growing?
Filing activity peaked at 59 records in 2020 and has since declined, falling -69% from 29 records in 2021 to 9 records in 2024, which is the most recent year the data can treat as complete. Because patent publication typically lags actual filing by around 18 months, the very latest years in any dataset always look artificially low, so 2025 and 2026 figures should not yet be read as a continuing drop. The safest reading is that activity cooled from a 2020 high rather than that the technology is being abandoned.
What patent classes cover optical bonding and lamination technology?
The largest classes are H01L (semiconductor devices, 28.0% of the 293 records) and H05K (printed circuits and assemblies, 26.3%), ahead of B32B (layered products and laminates, 24.6%) and the pure optics classes G02F (14.3%) and G02B (10.6%). Adhesive-related classes C09J and polymer classes C08F and C08K also appear across a meaningful share of records. Because a single record can carry multiple IPC classes, these shares add up to more than 100%, and the pattern shows that bonding and lamination claims are usually written alongside device-integration or materials language rather than as standalone optical claims.
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 Optical Bonding and Lamination Process 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.