Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12241040 | Composition and methods for stringed instrument repair | — | 2025-03-04 |
| 12211468 | Foldable stringed instrument and related methods | Jonathan Spangler, Linc Cholke | 2025-01-28 |
| 12206343 | Kinetic-powered battery systems for musical instruments and related methods | — | 2025-01-21 |
| 12142248 | Foldable stringed instrument and related methods | Jonathan Spangler, Bryan Cornwall, David Weckerly | 2024-11-12 |
| 11967300 | Musical instrument pitch changer system and related methods | — | 2024-04-23 |
| 11663996 | Foldable stringed instrument and related methods | Jonathan Spangler, Bryan Cornwall, David Weckerly | 2023-05-30 |
| 11643614 | Composition and methods for stringed instrument repair | — | 2023-05-09 |
| 11532291 | Musical instrument pitch changer system and related methods | — | 2022-12-20 |
| 11151969 | Musical instrument pitch changer system and related methods | — | 2021-10-19 |
| 10810977 | Musical instrument pitch changer system and related methods | — | 2020-10-20 |
| 10741151 | Musical instrument pitch changer | John Russell Alford | 2020-08-11 |
| 10192530 | Musical instrument pitch changer | John Russell Alford | 2019-01-29 |
| 10191611 | Graphical user interface defined cursor displacement tool | Jerry David Rawle | 2019-01-29 |
| 9704458 | Musical instrument pitch changer | John Russell Alford | 2017-07-11 |
| 9412346 | Musical instrument pitch changer | John Russell Alford | 2016-08-09 |
| 4777858 | Adjustable string contact system for a musical instrument | David J. Petschulat | 1988-10-18 |
| 4354417 | Tone changer for stringed instrument | — | 1982-10-19 |