Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D917556 | Display screen of smart piano with transitional graphical user interface | Xiaolu Liu | 2021-04-27 |
| D901523 | Display screen of smart piano with transitional graphical user interface | Xiaolu Liu | 2020-11-10 |
| D900864 | Display screen of smart piano with transitional graphical user interface | Xiaolu Liu | 2020-11-03 |
| D849827 | Upright piano | Xiaolu Liu | 2019-05-28 |
| D849828 | Upright piano | Xiaolu Liu | 2019-05-28 |
| D849829 | Upright piano | Xiaolu Liu | 2019-05-28 |
| D834638 | Grand piano | Xiaolu Liu | 2018-11-27 |
| D814556 | Upright piano | Xiaolu Liu | 2018-04-03 |
| 8143506 | Hammer assembly for grand piano | Bruce E. Clark, Kirk Burgett | 2012-03-27 |
| 7781652 | Universal grand piano piano action with simultaneous half stroke keyboard design capability | Bruce E. Clark, Kirk Burgett | 2010-08-24 |
| 7687692 | Hammer shank and shank butt for piano | Bruce E. Clark, Kirk Burgett | 2010-03-30 |
| 7687693 | Grand piano composite piano action | Bruce E. Clark, Kurk Burgett | 2010-03-30 |
| 7687694 | Low inertia grand piano piano action | Bruce E. Clark, Kirk Burgett | 2010-03-30 |