System and method for a virtual approach signal
US-12589784-B2 · Mar 31, 2026 · US
This page is not indexed by search engines while we improve data quality.
Ramolt Michael E patents
Ramolt Michael E is listed as an inventor on 15 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Ramolt Michael E |
| Total patents | 15 |
| First publication | Jun 1, 2023 |
| Latest publication | Mar 31, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
System and method for virtual block operational status control with long block time delay
US-12503145-B2 · Dec 23, 2025 · US
System and method for virtual approach signal restriction upgrade
US-12351219-B2 · Jul 8, 2025 · US
System and method for virtual approach signal restriction upgrade
US-2025214633-A1 · Jul 3, 2025 · US
System and method for virtual approach signal restriction upgrade
US-12311988-B2 · May 27, 2025 · US
System and method for virtual approach signal restriction upgrade
US-12252163-B2 · Mar 18, 2025 · US
System and method for virtual block stick circuits
US-2025033679-A1 · Jan 30, 2025 · US
System and method for virtual approach signal restriction upgrade
US-12195061-B2 · Jan 14, 2025 · US
System and method for a virtual approach signal
US-2024253677-A1 · Aug 1, 2024 · US
System and method for virtual approach signal restriction upgrade
US-2024246585-A1 · Jul 25, 2024 · US
Recent patents
Latest publications not already listed above.
System and method for virtual approach signal restriction upgrade
US-2024246583-A1 · Jul 25, 2024 · US
System and method for virtual approach signal restriction upgrade
US-2024246586-A1 · Jul 25, 2024 · US
System and method for virtual approach signal restriction upgrade
US-2024246584-A1 · Jul 25, 2024 · US
System and method for virtual approach signal restriction upgrade
US-11827256-B1 · Nov 28, 2023 · US
System and method for virtual block operational status control with long block time delay
US-2023166780-A1 · Jun 1, 2023 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Bnsf Railway Co | 15 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| B61L27/20 | 12 |
| B61L25/025 | 12 |
| B61L23/18 | 12 |
| B61L23/34 | 10 |
| B61L15/0018 | 10 |