Extendable window cleaning tool
US-D1085605-S · Jul 22, 2025 · US
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Hirsch Kai patents
Hirsch Kai is listed as an inventor on 31 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Hirsch Kai |
| Total patents | 31 |
| First publication | Jan 10, 2017 |
| Latest publication | Jul 22, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Extendable window cleaning tool
US-D1085606-S · Jul 22, 2025 · US
Water conditioning systems having diversion devices
US-12053742-B2 · Aug 6, 2024 · US
Water conditioning systems
US-12017942-B2 · Jun 25, 2024 · US
Pole connection for a window cleaning tool
US-D1008582-S · Dec 19, 2023 · US
Pole connection for a window cleaning tool
US-D1007793-S · Dec 12, 2023 · US
Water conditioning systems
US-11813570-B2 · Nov 14, 2023 · US
Clamp for an extendable pole
US-D981222-S · Mar 21, 2023 · US
Pole connection for a window cleaning tool
US-D976506-S · Jan 24, 2023 · US
Extendable window cleaning tool
US-D973989-S · Dec 27, 2022 · US
Recent patents
Latest publications not already listed above.
Water conditioning systems
US-2022280898-A1 · Sep 8, 2022 · US
Water conditioning systems
US-11369923-B2 · Jun 28, 2022 · US
Extendable cleaning tool
US-2022184795-A1 · Jun 16, 2022 · US
Water conditioning systems having diversion devices
US-2022040640-A1 · Feb 10, 2022 · US
Water conditioning systems having diversion devices
US-11185822-B2 · Nov 30, 2021 · US
Water purification media device
US-D928911-S · Aug 24, 2021 · US
Water purification media device
US-D913413-S · Mar 16, 2021 · US
Water conditioning systems
US-2021047222-A1 · Feb 18, 2021 · US
Water conditioning systems
US-2020384413-A1 · Dec 10, 2020 · US
Water conditioning systems
US-10717046-B2 · Jul 21, 2020 · US
Water conditioning systems having diversion devices
US-2020147549-A1 · May 14, 2020 · US
Water conditioning systems having diversion devices
US-10549239-B2 · Feb 4, 2020 · US
Pure water systems
US-2020010338-A1 · Jan 9, 2020 · US
Filter assembly with locking cover
US-10414671-B2 · Sep 17, 2019 · US
Fluid conditioning systems having caps with filter cartridge sealing and removal devices and/or locking devices
US-10307712-B2 · Jun 4, 2019 · US
Water cleaning systems
US-2018071791-A1 · Mar 15, 2018 · US
Water conditioning device
US-D796628-S · Sep 5, 2017 · US
Water conditioning systems having diversion devices
US-2017137303-A1 · May 18, 2017 · US
Fluid conditioning systems having caps with filter cartridge sealing and removal devices and/or locking devices
US-2017136412-A1 · May 18, 2017 · US
Water conditioning systems
US-2017137304-A1 · May 18, 2017 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Unger Marketing Int Llc | 31 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C02F1/42 | 19 |
| C02F1/001 | 18 |
| C02F2201/008 | 18 |
| B01D2201/4076 | 16 |
| C02F1/441 | 16 |