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Patents Grants
last 30 patents
Information
Patent Grant
Water-saving siphonic toilet and equalization system therefor
Patent number
12,291,857
Issue date
May 6, 2025
P & C Hennessy Holdings Inc.
Philip Hennessy
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Pressurized trap water saver toilet
Patent number
8,196,231
Issue date
Jun 12, 2012
P & C Hennessy Holdings, Inc.
Philip Hennessy
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Water saver toilet with uniform water spot
Patent number
8,141,179
Issue date
Mar 27, 2012
P & C Hennessy Holdings, Inc.
Philip Hennessy
E03 - WATER SUPPLY SEWERAGE
Patents Applications
last 30 patents
Information
Patent Application
SYSTEM AND METHOD FOR FLUSING AN OBJECT
Publication number
20240191484
Publication date
Jun 13, 2024
P & C Hennessy Holdings, Inc.
Philip Dawson Hennessy
E03 - WATER SUPPLY SEWERAGE
Information
Patent Application
WATER-SAVING SIPHONIC TOILET AND EQUALIZATION SYSTEM THEREFOR
Publication number
20210140162
Publication date
May 13, 2021
P & C Hennessy Holdings Inc.
Philip Hennessy
E03 - WATER SUPPLY SEWERAGE
Information
Patent Application
TRAPWAY SEALING BLOCKAGE CLEARING DEVICE
Publication number
20190003168
Publication date
Jan 3, 2019
P&C Hennessy Holdings, Inc
Philip Dawson Hennessy
E03 - WATER SUPPLY SEWERAGE
Trademark
last 30 trademarks