US 12,228,685 B2
Variable wettability sensor device cover
Zhe Li, Rochester, MI (US); Bo Yang, Rochester Hills, MI (US); Yuchuan Liu, Troy, MI (US); Julien P. Mourou, Bloomfield Hills, MI (US); and Rachit Garg, Bangalore (IN)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on May 11, 2022, as Appl. No. 17/741,740.
Prior Publication US 2023/0366996 A1, Nov. 16, 2023
Int. Cl. G01S 7/497 (2006.01); G01D 11/24 (2006.01); G01S 7/02 (2006.01); G01S 13/931 (2020.01); G01S 17/931 (2020.01)
CPC G01S 7/497 (2013.01) [G01D 11/245 (2013.01); G01S 7/027 (2021.05); G01S 2007/4977 (2013.01); G01S 13/931 (2013.01); G01S 17/931 (2020.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus configured to protect a sensor device, the apparatus comprising:
a cover mounted on the sensor device, the cover including a cover portion made from a transparent material that is transparent to sensor signals, the cover portion including an external surface having a wettability that varies according to a wettability gradient in a selected direction along the surface.