Plungers, toilet brushes, and caddy assembiles
US-2022307250-A1 · Sep 29, 2022 · US
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by means of a pumping device
by means of a pumping device · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E03C1/308 |
| Official title | by means of a pumping device |
| Display label | by means of a pumping device |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be declining based on the most recent years.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 4 |
| 2022 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Drain clearing air gun
US-2022152671-A1 · May 19, 2022 · US
Drain clearing air gun
US-11235360-B2 · Feb 1, 2022 · US
Toilet plunger
US-10443221-B2 · Oct 15, 2019 · US
Drain clearing air gun
US-2019283091-A1 · Sep 19, 2019 · US
Toilet plunger
US-2019218759-A1 · Jul 18, 2019 · US
Drain clearing air gun
US-10350656-B2 · Jul 16, 2019 · US
Drain clearing air gun
US-2018133763-A1 · May 17, 2018 · US