Completion Packers and Anchors Patents: Top Companies & Trends 2026
Completion Packers and Anchors Patents: Who Holds the Ground and What Is Still Open
71.5% of all 460 records sit with just five assignees, leaving a long tail of single-digit filers behind them. Annual filings rose to a peak of 18 in 2021, then fell to 4 by 2024 — a -78% move over that three-year span. Counts from 2025 onward are still filling in under normal publication lag and should not yet be read as a continued decline.
- 1BAKER HUGHES CO142
- 2HALLIBURTON CO86
- 3HALLIBURTON ENERGY SERVICES INC59
- 4SCHLUMBERGER TECH CORP26
- 5WEATHERFORD TECHNOLOGY HOLDINGS LLC16
See the full completion packers and anchors 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 completion packer patents
Who holds the most patents on completion packers and anchors?
The ranking in this dataset shows one assignee with 142 of the 460 records in scope, well ahead of the fifth-place company at 16 records. The top five assignees together hold 71.5% of all records, and the top ten hold 84.3%. That level of concentration means most new filers are working around a small number of established portfolios rather than an open field.
Is the completion packer patent field still growing?
Filing activity peaked at 18 records in 2021 and had fallen to 4 by 2024, a decline of 78% over that span. That drop is measured against complete years, so it is a real slowdown rather than a data gap. Counts for 2025 and 2026 are still incomplete because publication typically lags filing by around 18 months, so those years should not yet be read as confirming or reversing the trend.
What technology areas does completion packer patent activity cover?
Almost all records, 97.6% of the 460 in scope, classify under E21B, the earth and rock drilling subclass covering wells. Smaller numbers of records also touch cleaning, geophysics, coatings, alloys, presses and solid-state electric devices, each under 3% of records. These smaller classes mark where packer hardware claims intersect with materials science and downhole sensing rather than pure mechanical sealing.
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 Completion Packers and Anchors 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.