The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2026
Filed:
Mar. 29, 2024
Donaldson Company, Inc., Bloomington, MN (US);
Stephen K. Sontag, Plymouth, MN (US);
Mikayla A. Yoder, Eagan, MN (US);
Matthew P. Goertz, Bloomington, MN (US);
Davis B. Moravec, Burnsville, MN (US);
Donaldson Company, Inc., Bloomington, MN (US);
Abstract
An article includes a permeable material having a surface; and a hydrophobic coating on the surface forming a hydrophobic surface, the hydrophobic coating being free of fluorine, and the hydrophobic surface having a water-contact angle of 95 degrees or greater. The article may be a vent. A method of making the hydrophobic article includes applying a hydrophobic material onto a permeable material; and curing the hydrophobic material to form a hydrophobic surface. The hydrophobic coating may include siloxane.