IP Library › Granted Patent US 1,108,590
Granted Patent S1
US 1,108,590 · App. 29/911,626 · Granted Jan 6, 2026

Reducing flat top drainage structure

Inventors: Noah Hanley (Stone Mountain, GA); Courtney Ashliman (Cumming, GA)
Assignee: Advanced Drainage Systems, Inc.
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Quick Facts
Patent No.
US 1,108,590
App. No.
29/911,626
Granted
Jan 6, 2026
Kind
S1
Claims (1)

The ornamental design for a reducing flat top drainage structure, as shown and described.

Assignments (2)
SECURITY INTEREST Recorded Mar 2, 2026
From: ADVANCED DRAINAGE SYSTEMS, INC.
To: PNC BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 074990/0789 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 6, 2023
From: HANLEY, NOAH; ASHLIMAN, COURTNEY
To: ADVANCED DRAINAGE SYSTEMS, INC
Reel/Frame 064817/0029 →
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