Convertible High Chair

Patent No. US11534006 (titled "Convertible High Chair") was filed by Kids2 Llc on Oct 14, 2020.

’006 is related to the field of children's furniture, specifically convertible high chairs. Traditional high chairs often lack versatility, requiring separate booster seats or complex modifications for different age groups. Existing convertible designs may require additional base components for the booster seat function, adding to storage and complexity.

The underlying idea behind ’006 is to create a high chair with a removable booster seat that can be used independently without needing a separate base. This is achieved by designing the booster seat with a stable, flat bottom surface that allows it to rest securely on a regular chair or other flat surface. The booster seat also attaches securely to the high chair frame to form a complete high chair.

The claims of ’006 focus on a convertible high chair featuring a frame, a first child seat attached to the frame, and a second child seat that can be removably coupled to the first child seat. Crucially, the second child seat has a lower surface designed for stable, independent use as a booster seat on a flat surface when detached from the high chair.

In practice, the second child seat nests securely on top of the first child seat, forming a complete high chair suitable for infants. When the child grows, the second seat can be detached and used as a booster seat on a standard dining chair. The bottom surface of the booster seat is shaped to provide stability and prevent slipping, often incorporating non-slip pads. Straps may be included to further secure the booster seat to the chair.

This design differentiates itself from prior art by eliminating the need for a separate base for the booster seat. The integrated design simplifies conversion and reduces the number of parts required. The shape of the booster seat's bottom surface is often complementary to the first seat's surface, ensuring a secure fit when combined. The side walls of the first seat may also engage with recesses on the booster seat, further enhancing stability.

How does this patent fit in bigger picture?

Technical landscape at the time

In the early 2010s when ’006 was filed, at a time when high chairs were typically implemented using a frame to elevate a child seat above the floor. When systems commonly relied on a separate booster seat that could be removably secured to the high chair's child seat in order to convert the high chair for use by children of different ages.

Novelty and Inventive Step

The examiner approved the application because prior art references, specifically Lee et al. and Clark, did not fully disclose all the features of the claimed invention. Clark did not disclose a convertible chair, and Lee et al. failed to disclose a second child seat with an upper portion defining a seating surface and a lower portion configured to rest on a flat surface for stable support. Additionally, Lee et al. did not disclose a child seat with a support base for standard chairs or a lower portion for detachable engagement with the first seat in the highchair configuration.

Claims

This patent contains 23 claims, with independent claims numbered 1, 8, 15, and 21. The independent claims are directed to convertible children's highchairs having a first seat coupled to a frame and a second seat that can be detachably coupled to the first seat and also used independently on a support surface. The dependent claims generally elaborate on the specific features and configurations of the frame, seats, and engagement mechanisms of the convertible highchair.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)	Support for Specification	Interpretation
First seating surface (Claim 1)	“In various embodiments, the convertible high chair comprises: a frame configured for resting on a floor; a first child seat defining a first seating surface, the first child seat being coupled to the frame and supported above the floor; and a second child seat defining a second seating surface, the second child seat configured for being removably coupled to at least one of the first child seat and the frame.”	A surface of the first child seat upon which a child can sit, where the first child seat is coupled to the frame and supported above the floor.
First seat surface (Claim 21)	“In various embodiments, the convertible high chair comprises: a frame configured for resting on a floor; a first child seat defining a first seating surface, the first child seat being coupled to the frame and supported above the floor; and a second child seat defining a second seating surface, the second child seat configured for being removably coupled to at least one of the first child seat and the frame.”	A surface of the first seat for supporting a child seated thereon.
Flat support surface (Claim 1)	“In various embodiments, the convertible high chair comprises: a frame configured for resting on a floor; a first child seat defining a first seating surface, the first child seat being coupled to the frame and supported above the floor; and a second child seat defining a second seating surface, the second child seat configured for being removably coupled to at least one of the first child seat and the frame. In various embodiments, the second child seat defines a base surface configured for resting directly on a support surface and supporting the second child seat on the support surface when the second child seat is decoupled from the first child seat and the frame.”	A surface upon which the lower surface of the second child seat rests, supporting the second child seat in a stable upright position.
Second seating surface (Claim 1)	“In various embodiments, the convertible high chair comprises: a frame configured for resting on a floor; a first child seat defining a first seating surface, the first child seat being coupled to the frame and supported above the floor; and a second child seat defining a second seating surface, the second child seat configured for being removably coupled to at least one of the first child seat and the frame.”	A surface of the upper portion of the second child seat that is configured to support a child.
Support frame seat (Claim 8)	“Various embodiments of the present invention are directed to a convertible children's high chair. In various embodiments, the convertible high chair comprises: a frame configured for resting on a floor; a first child seat defining a first seating surface, the first child seat being coupled to the frame and supported above the floor; and a second child seat defining a second seating surface, the second child seat configured for being removably coupled to at least one of the first child seat and the frame.”	A seat that is part of the support frame and supports a child seated thereon.

Litigation Cases New

US Latest litigation cases involving this patent.

Case Number	Filing Date	Title
5:25-cv-02001	Aug 1, 2025	Kids2, LLC v. Baby Trend, Inc.
1:24-cv-12399	Sep 19, 2024	Kids2, Llc V. Dorel Juvenile Group, Inc.

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US11534006

KIDS2 LLC

Application Number: US17070719
Filing Date: Oct 14, 2020
Status: Granted
Expiry Date: Dec 12, 2032
External Links: Slate, USPTO, Google Patents

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