US 8,251,067 · Application 12/857,356
US Patent 8,251,067 — assignment history and current owner
Bronchial Flow Control Devices With Membrane Seal
Who owns US Patent 8,251,067?
US8251067 ("Bronchial Flow Control Devices With Membrane Seal") — current assignee: PULMONX CORPORATION. Status: Expired. 9 recorded USPTO assignments.
Based on recorded USPTO assignment data, the apparent operating assignee of US Patent 8,251,067 is PULMONX CORPORATION. Based on the most recent merger / corporate change record (recorded 2019-04-23).
- Patent title
- Bronchial Flow Control Devices With Membrane Seal
- Application number
- 12/857,356
- Apparent operating assignee
- PULMONX CORPORATION
- Patent status
- Expired
- Recorded assignments
- 9
Recorded assignment history
| Executed | Recorded | Conveyance | Assignor(s) | Assignee(s) | Reel/frame |
|---|---|---|---|---|---|
| Mar 31, 2009 | May 28, 2015 | Ownership Transfer | EMPHASYS MEDICAL, INC. | PULMONX | 35736/241 |
| Jul 17, 2003 | May 28, 2015 | Ownership Transfer | FIELDS, ANTONY J.; HENDRICKSEN, MICHAEL; HUNDERTMARK, RONALD; WILSON, PETER | EMPHASYS MEDICAL, INC. | 35736/169 |
| May 15, 2017 | May 15, 2017 | Security Interest | PULMONX CORPORATION | OXFORD FINANCE LLC, AS COLLATERAL AGENT | 42466/349 |
| May 15, 2017 | Jul 26, 2017 | Security Interest | PULMONX CORPORATION | BOSTON SCIENTIFIC CORPORATION | 43349/725 |
| Dec 30, 2013 | Apr 23, 2019 | Merger / Corporate Change | PULMONX | PULMONX CORPORATION | 48964/563 |
| Feb 20, 2020 | Mar 2, 2020 | Security Interest | PULMONX CORPORATION | CANADIAN IMPERIAL BANK OF COMMERCE | 52916/213 |
| Sep 30, 2020 | Sep 30, 2020 | Release of Security Interest | OXFORD FINANCE LLC, AS COLLATERAL AGENT | PULMONX CORPORATION | 53952/44 |
| Sep 30, 2020 | Sep 30, 2020 | Release of Security Interest | BOSTON SCIENTIFIC CORPORATION | PULMONX CORPORATION | 53953/548 |
| Mar 2, 2026 | Mar 4, 2026 | Release of Security Interest | CANADIAN IMPERIAL BANK OF COMMERCE | PULMONX CORPORATION | 75028/274 |
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Chain of title
In 2015, EMPHASYS MEDICAL, INC. assigned the patent to PULMONX. The most recent ownership transfer, recorded in 2015, lists EMPHASYS MEDICAL, INC. as assignee. In 2019, a corporate change was recorded from PULMONX to PULMONX CORPORATION. A security interest recorded by OXFORD FINANCE LLC, AS COLLATERAL AGENT; BOSTON SCIENTIFIC CORPORATION (+1 more) was later released; security interests reflect financing arrangements, not changes in operating ownership.
Apparent recorded rights summary — disclaimer
This tool presents recorded assignment data from the USPTO assignment database. It does not constitute a legal opinion on ownership or title. Assignments may exist that have not been recorded. Corrective records, off-record transfers, court orders, and other events may affect actual ownership. Consult a qualified patent attorney for definitive title analysis.
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Application 12/857,356 · US 8,251,067
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Data sourced from public USPTO assignment records. This tool provides informational summaries and should not be relied upon as legal advice or a definitive title opinion. Always verify patent ownership independently, especially where unrecorded transfers, court orders, or other off-record events may apply.