Toilet with non-vitreous flush engine
US-12345035-B2 · Jul 1, 2025 · US
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Duwell Lawrence E patents
Duwell Lawrence E is listed as an inventor on 23 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Duwell Lawrence E |
| Total patents | 23 |
| First publication | Oct 11, 2018 |
| Latest publication | Jul 1, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Universal canister flush valve
US-2025067034-A1 · Feb 27, 2025 · US
Universal canister flush valve
US-12163321-B2 · Dec 10, 2024 · US
Toilet with non-vitreous flush engine
US-2024093476-A1 · Mar 21, 2024 · US
Toilet with non-vitreous flush engine
US-11866921-B2 · Jan 9, 2024 · US
Plumbing fixture with drain-casted jet orifice
US-11761189-B2 · Sep 19, 2023 · US
Plumbing fixture with drain-casted jet orifice
US-2022349168-A1 · Nov 3, 2022 · US
Plumbing fixture with drain-casted jet orifice
US-11421413-B2 · Aug 23, 2022 · US
Retractable cord management system
US-11401132-B2 · Aug 2, 2022 · US
Universal canister flush valve
US-2022178123-A1 · Jun 9, 2022 · US
Recent patents
Latest publications not already listed above.
Universal canister flush valve
US-11286655-B2 · Mar 29, 2022 · US
Toilet with non-vitreous flush engine
US-2022049485-A1 · Feb 17, 2022 · US
Toilet with non-vitreous flush engine
US-11180910-B2 · Nov 23, 2021 · US
Plumbing fixture with drain-casted jet orifice
US-2021262215-A1 · Aug 26, 2021 · US
Plumbing fixture with drain-casted jet orifice
US-11028567-B2 · Jun 8, 2021 · US
Plumbing fixture with drain-casted jet orifice
US-2020332509-A1 · Oct 22, 2020 · US
Universal canister flush valve
US-2020263405-A1 · Aug 20, 2020 · US
Toilet coupling
US-10738448-B2 · Aug 11, 2020 · US
Retractable cord management system
US-2020130982-A1 · Apr 30, 2020 · US
Toilet with non-vitreous flush engine
US-2020048886-A1 · Feb 13, 2020 · US
Toilet seat package
US-10414540-B2 · Sep 17, 2019 · US
Toilet coupling
US-2019169825-A1 · Jun 6, 2019 · US
Toilet seat package
US-2018290788-A1 · Oct 11, 2018 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Kohler Co | 23 |
Top CPC classifications
Most common classification codes across this inventor's patents.