CS

Chang J. Song

📍 Seattle, WA: #2,410 of 21,776 inventorsTop 15%
🗺 Washington: #8,536 of 76,902 inventorsTop 15%
Overall (All Time): #428,780 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
5768924 Key clip 1998-06-23
D383599 Key ring 1997-09-16
D383600 Key ring 1997-09-16
5617751 Key fob and attachment 1997-04-08
D371903 Key ring 1996-07-23
D371999 Key ring 1996-07-23
5528916 Device for securing objects on a ring 1996-06-25
5501089 Key fob and attachment 1996-03-26
5365760 Key security device 1994-11-22
5181927 Frame lock mechanism for a key light 1993-01-26
D304130 Attachable key light 1989-10-24
4787016 Light attachable to a key 1988-11-22