Inboard-mounted safety latch mechanism for preventing a walkway platform flip door from being raised without a guardrail installed
US-12421741-B2 · Sep 23, 2025 · US
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Dunlap Brennan J patents
Dunlap Brennan J is listed as an inventor on 4 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Dunlap Brennan J |
| Total patents | 4 |
| First publication | Jan 12, 2023 |
| Latest publication | Sep 23, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Systems and methods for preventing a walkway platform flip door from being raised without a guardrail installed
US-12404707-B2 · Sep 2, 2025 · US
Systems and Methods for Preventing a Walkway Platform Flip Door From Being Raised Without a Guardrail Installed
US-2023011346-A1 · Jan 12, 2023 · US
Inboard-Mounted Safety Latch Mechanism for Preventing a Walkway Platform Flip Door From Being Raised Without a Guardrail Installed
US-2023010425-A1 · Jan 12, 2023 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Boeing Co | 4 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E04G5/14 | 4 |
| B66F11/04 | 4 |
| B64F5/10 | 4 |
| B66F17/006 | 4 |
| E05C3/004 | 2 |