US 12433239

US Patent 12433239, titled "Pet toilet with a detachable fecal collection box to a bottom of a base," was granted to PetPivot Inc. with Tieqiang Tang listed as the inventor. The application was filed on December 21, 2023, and the patent was issued on October 7, 2025.

The abstract describes a pet toilet comprising a base and a detachable fecal collection box. The base includes a through-hole from top to bottom, which communicates with a fecal collection chamber within the detachable box, designed to collect excrement. This design aims to facilitate easier cleaning by allowing the fecal collection box to be independently detached and processed.

A plain-language overview of the independent claims is as follows:

• Independent Claim 1: This claim describes a pet toilet with a base and a removable fecal collection box. The base has a central opening. The collection box, which fits underneath, has a chamber connected to this opening. The bottom of the base features slots on two sides of the opening, into which outward-protruding flanges on the collection box are inserted. A joint structure, consisting of a bump on the flange and a corresponding groove in the base, secures the box when it's mounted.
• Independent Claim 3: This claim outlines a pet toilet also featuring a base with a through-hole and a detachable fecal collection box with a chamber. Similar to Claim 1, the base has insertion slots on either side of the through-hole for the fecal collection box's flanges. Additionally, the base has downward-extending limit protrusions located on two sides of the through-hole, separate from the C-shaped insertion slots, which work with the slots to stabilize the mounted fecal collection box.
• Independent Claim 10: This claim further details the pet toilet with a base, a through-hole, and a detachable fecal collection box. It specifies that the fecal collection box is constructed from at least one hollow "extension frame" and a hollow "fixing basin," with the extension frame fitting over the outside of the fixing basin and being detachably connected. The fecal collection chamber is formed by these components. Crucially, the fecal collection box includes multiple extension frames that fit inside each other in sequence by size, with a tight (interference) fit between adjacent frames. The outermost extension frame is where the insertion flange is located.

As of July 7, 2026, searches of the USPTO database for US12433239 confirm the details as presented on Google Patents. No specific dockets related to US12433239 were found in the CAFC 2026 dockets during the search.