Copyright © Françoise Herrmann
In addition to the mechanical inventions, invoked in the Van Cleef & Arpels Poetic Complications® watches, patented with US utility patents, the series also includes ornamental inventions for which US design patents were granted.
The Heures Filantes (Fleeting Time) Lady Arpels watch, for example, has three associated US design patents (USD):
Below, three hyperlinked patent drawings, one from each of the three US design patents associated with the Heures Filantes Poetic Complications® watch, are included, with an image of the embodied and marketed product.
Heures Filantes Lady Arpels watch
As a reminder a US design patent is different from a US utility patent in that:
a “utility patent” protects the way an article is used and works (35 U.S.C. 101), while a "design patent" protects the way an article looks (35 U.S.C. 171)” (USPTO).
Van Cleef & Arpels - The story of Poetic Complications®
Herrmann, F. (2017) Van Cleef & Arpels - Poetic complications®
USPTO - MPEP - Manual of Patent Examination Procedures