Bolt Loosening and Thread Locking Patents: Filing Trends and White Space
Filing has cooled sharply. 2021 to 2024 filings fell 83%, from 6 to 1, on the most recent years that can be treated as complete. Filings peaked at 7 in 2018. The 2021-to-2024 span, the most recent period treatable as complete, shows a decline of 83% (6 to 1). Publication lags filing by roughly 18 months, so 2025 and 2026 figures will fill in and should not yet be read as a continued fall.
- 1SIEMENS ENERGY GLOBAL GMBH & CO KG4
- 2DALIAN UNIV OF TECH4
- 3BEIJING UNIV OF TECH3
- 4吕贵刚3
- 5OAKLAND THE CORP2
See the full bolt loosening and thread locking 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
How many patents exist for bolt loosening and thread locking technology?
This dataset contains 38 published records in scope, spanning 2015 through the 2026 data cut-off. That figure reflects a specific search string combining bolt-loosening and thread-locking terms with vibration-test and clamp-force-retention terms, so it is a defined slice of the field rather than every fastener-related patent ever filed. Because publication lags filing by roughly 18 months, the true count for 2025 and 2026 will rise as more records publish.
Is patent filing in bolt loosening and thread locking increasing or slowing down?
Filing peaked at 7 records in 2018 and has declined since; the most recent complete span, 2021 to 2024, shows an 83% drop from 6 filings to 1. That is a real pullback in new filing activity over that window. Figures for 2025 and 2026 are still incomplete due to publication lag, so it is too early to call the current trajectory a continued decline versus a floor.
Who are the leading companies filing bolt loosening and thread locking patents?
The ranking covers 27 companies across the 38 records in scope, led by an assignee holding 4 records. The top 5 combined account for 42.1% of all records and the top 10 combined reach 68.4%, meaning the field is moderately concentrated but not dominated by a single filer. University research groups and individual inventors both appear among the more active names, alongside a long tail of single-filing entrants.
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 Bolt Loosening and Thread Locking 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.