Systems for human waste collection and processing
US-12571195-B2 · Mar 10, 2026 · US
Dry closets, e.g. incinerator closets
Dry closets, e.g. incinerator closets · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A47K11/02 |
| Official title | Dry closets, e.g. incinerator closets |
| Display label | Dry closets, e.g. incinerator closets |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 11 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems for human waste collection and processing
US-12571194-B2 · Mar 10, 2026 · US
Closestool with classification, collection and treatment functions
US-12440074-B2 · Oct 14, 2025 · US
Autonomous waste collection
US-12426747-B2 · Sep 30, 2025 · US
Human waste collection system, for zero-gravity conditions, including user selectable modes for collecting liquid waste, solid waste and menses
US-12415626-B2 · Sep 16, 2025 · US
Systems for human waste collection and processing
US-2025257554-A1 · Aug 14, 2025 · US
Systems for human waste collection and processing
US-2025257555-A1 · Aug 14, 2025 · US
Systems for human waste collection and processing
US-2025256866-A1 · Aug 14, 2025 · US
Systems for human waste collection and processing
US-2025257556-A1 · Aug 14, 2025 · US
Neutral buoyancy solid waste capture test method
US-2025221584-A1 · Jul 10, 2025 · US
Closestool with Classification, Collection and Treatment Functions
US-2025160583-A1 · May 22, 2025 · US
Heated valve assembly
US-2025116354-A1 · Apr 10, 2025 · US
Human waste collection system, for zero-gravity conditions, including user selectable modes for collecting liquid waste, solid waste and menses
US-2025051041-A1 · Feb 13, 2025 · US
Buffer tank separation and homogenization system
US-2024300838-A1 · Sep 12, 2024 · US
Liner toilet
US-11974703-B2 · May 7, 2024 · US
Toilet and garment for waste removal in a zero-gravity condition
US-11970291-B2 · Apr 30, 2024 · US
Toilet and garment for waste removal in a zero-gravity condition
US-2023322420-A1 · Oct 12, 2023 · US
Dual mode interconnect
US-11730325-B2 · Aug 22, 2023 · US
Autonomous Waste Collection
US-2022369872-A1 · Nov 24, 2022 · US
Dual mode interconnect
US-2022015588-A1 · Jan 20, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A47K11/02?
- CPC A47K11/02 is the Cooperative Patent Classification code for “Dry closets, e.g. incinerator closets.”
- How many patents are filed under CPC A47K11/02 (Dry closets, e.g. incinerator closets)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC A47K11/02 growing?
- Publication counts under this code: 3 in 2024 vs 11 in 2025 (latest complete years).