IP Library › Granted Patent US 1,110,471
Granted Patent S1
US 1,110,471 · App. 29/885,236 · Granted Jan 27, 2026

L-ball union drain valve

Inventors: Christopher W. Mason (Granger, IN); Lisa Lyon (North Grafton, MA)
Assignee: NIBCO Inc.
F16K27/067
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Quick Facts
Patent No.
US 1,110,471
App. No.
29/885,236
Granted
Jan 27, 2026
Kind
S1
Claims (1)

The ornamental design for an L-ball union drain valve as shown and described.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 22, 2023
From: MASON, CHRISTOPHER W.; LYON, LISA
To: NIBCO INC.
Reel/Frame 062764/0133 →
Continuity (1)
Continuation 17126104 · Dec 18, 2020
References Cited (20)
US 3778029A · Baker · 1973 [cited by applicant]
US 6302446B1 · Spears et al. · 2001 [cited by applicant]
US 6655412B2 · Reck · 2003 [cited by applicant]
US 7631662B2 · Reck · 2009 [cited by applicant]
US D818562S · Yung · 2018 [cited by examiner]
US 10458662B2 · Olsen et al. · 2019 [cited by applicant]
US D944931S · Thibodeaux, Jr. · 2022 [cited by examiner]
US D957592S · Downie · 2022 [cited by examiner]
US D1050359S · Thibodeaux, Jr. · 2024 [cited by examiner]
US D1053314S · Lildholdt · 2024 [cited by examiner]
US D1076028S · Li · 2025 [cited by examiner]
US 20040124386A1 · Carey · 2004 [cited by applicant]
US 20080314466A1 · Cimberio et al. · 2008 [cited by applicant]
US 20110073201A1 · Matsui et al. · 2011 [cited by applicant]
US 20160097550A1 · Karamanos · 2016 [cited by applicant]
US 20190226592A1 · Hussein et al. · 2019 [cited by applicant]
CN 205781020 · 2016 [cited by applicant]
CN 207195715 · 2018 [cited by applicant]
JP H07301351 · 1995 [cited by applicant]
Webstone, Pro-Pal Series Union Ball Drain, www.webstonevalves.com/default.aspx?page=customer&file=customer/wecoin/customerpages/unionballdrain.htm (2020). [cited by applicant]