Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9818267 | Doorbell system and doorbell chime | Christopher Parker, Felix Haeffner, Iphin Rangson | 2017-11-14 |
| D795728 | Door chime | Christopher Parker, Felix Haeffner, Iphin Rangson | 2017-08-29 |
| D795115 | Door chime | Christopher Parker, Felix Haeffner, Iphin Rangson | 2017-08-22 |
| D772749 | Door chime | Christopher Parker, Felix Haeffner, Iphin Rangson | 2016-11-29 |
| D772748 | Door chime | Christopher Parker, Felix Haeffner, Iphin Rangson | 2016-11-29 |
| D770318 | Door chime | Christopher Parker, Felix Haeffner, Iphin Rangson | 2016-11-01 |
| D769759 | Door chime with illumination | Christopher Parker, Felix Haeffner, Iphin Rangson | 2016-10-25 |