Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D378432 | Handrail with a braille insert | — | 1997-03-11 |
| 5417574 | Handrail system providing audio messages for the visually impaired | — | 1995-05-23 |
| D353455 | Braille insert for a continuous cartridge for handrails | — | 1994-12-13 |
| D353467 | Metal handrail with braille insert | — | 1994-12-13 |
| 5366050 | Braille insert in a continuous cartridge for handrails | — | 1994-11-22 |
| 5284444 | Handrail system for guiding visually impaired having braille and audio message indicators | — | 1994-02-08 |