US Design Patent D48,160: 'Design for a Bottle or Similar Article' (the contour Coca-Cola bottle)
The pattern
This still sits in the public-domain pool. No pattern name yet.
Why it works
Samuelson designed the contour bottle with distinct fluting and curves so recognizable that a customer could identify it in the dark or broken on the ground. Creating an unmistakable proprietary tactile silhouette turned package design into brand protection against copycats.
Steal this when
Steal this when engineering a distinctive physical form factor that preserves brand identity even when unbranded or fragmented.