One Proud Toddler Sues Fridababy in Delaware Over the Fold-and-Go Potty Seat.

Patents and accused products

The case is One Proud Toddler, LLC v. Fridababy, LLC, No. 1:26-cv-01348 (D. Del.). The complaint is dated October 19, 2026, and the court stamp reads filed October 19, 2026. The complaint says One Proud Toddler is a California limited liability company and a family-owned business, with a registered business address in Coronado, California, and that it develops, manufactures, markets, and sells the Potty Proud Folding Potty Seat. It alleges that Fridababy is a Delaware limited liability company headquartered in Miami, Florida. Subject matter jurisdiction is pleaded under 28 U.S.C. 1338. The complaint says the action arises under the patent laws, including 35 U.S.C. 271 and 284. Personal jurisdiction is pleaded because Fridababy is organized under Delaware law. Venue is pleaded under 28 U.S.C. 1400(b) because, the complaint says, Fridababy resides in the district for purposes of the patent venue statute.

U.S. Patent 11,647,875, titled Collapsible Child Toilet Seat, issued May 16, 2023, from Application No. 17/327,371, filed May 21, 2021. The patent says it claims priority to provisional application 63/028,526, filed May 21, 2020. The complaint alleges that One Proud Toddler owns the patent by assignment, including the right to recover damages for past, present, and future infringement, and that the company's co-founders are the named inventors. Google Patents lists the patent as active, with an anticipated expiration of May 21, 2041. The complaint says a copy of the patent is attached as Exhibit A.

The accused product is the Fridababy Fold-and-Go Potty Seat. The complaint alleges that One Proud Toddler launched the Potty Proud Seat in late May 2022, that the product and its packaging were marked Patent Pending, and that beginning no later than April 2024 the company virtually marked the seat under 35 U.S.C. 287(a) by an Internet address listing the '875 patent among three patents directed to the seat. It alleges that Fridababy began commercializing the Fold-and-Go in or about August 2023 and that the Fold-and-Go is manufactured in China. It alleges that, from the Fold-and-Go's launch through this filing, the Potty Proud Seat was One Proud Toddler's sole commercialized product.

What the patent covers

The complaint alleges literal infringement of at least claim 11, and infringement of claim 14, including under the doctrine of equivalents to the extent necessary. It says claim 14 depends from claim 11. Claim 11 of U.S. Patent 11,647,875 covers a collapsible toilet seat with a body that has a deployed position having a substantially U-shape and an upper surface opposite a lower surface. The body is foldable from the deployed position to a collapsed position, and in the deployed position it is positionable atop a toilet seat. The body has a first body portion in a first pivoting engagement with a second body portion. The first body portion has a first segment in a second pivoting engagement with a second segment. The second body portion has a third segment in a third pivoting engagement with a fourth segment. A flange extends from a perimeter edge of the body and forms the contact of the body, in the deployed position, with the toilet seat. A gap is formed between the lower surface of the body and the toilet seat when the body is positioned thereon. Claim 14 covers that collapsible toilet seat and adds a pliable cover positioned upon the flange.

What the lawsuit is about

The complaint alleges that the Fold-and-Go is a collapsible, substantially U-shaped folding toilet seat with four segments and three pivoting engagements. It alleges a flange extending from a perimeter edge of the body, substantially about the exterior perimeter, which forms the contact with the toilet seat in the deployed position, and a gap between the lower surface of the body and the toilet seat. It alleges that Fridababy's marketing copy uses the terms non-slip base and handles for regions of that perimeter structure, and that under One Proud Toddler's primary theory those regions are the flange in claim 11. Count I alleges direct infringement of at least claim 11 by making, using, offering to sell, selling, and/or importing the Fold-and-Go in the United States without authorization, and it alleges infringement of claim 14, including under the doctrine of equivalents to the extent necessary. The complaint cites 35 U.S.C. 271.

The complaint alleges that Fridababy personnel, including senior product-development and partnerships personnel, obtained Potty Proud Seats in August 2022 and October 2022, while the product was marked Patent Pending. It alleges that a product-development executive purchased a seat on August 26, 2022, through One Proud Toddler's website, and that a partnerships employee sought a seat on October 24, 2022. It alleges that One Proud Toddler questioned that second order, raised a concern about use in developing a competing product, and cancelled it. It alleges that the partnerships employee then represented that the seat was intended as a personal gift and invited a discussion of collaboration, and that One Proud Toddler provided a complimentary seat to the recipient designated at Fridababy's Miami, Florida headquarters. The complaint alleges that the circumstances support an inference that those statements were false or misleading. It alleges, on information and belief, that Fridababy used one or both seats in connection with evaluation and development of the Fold-and-Go.

The complaint alleges actual knowledge of the '875 patent no later than July 12, 2024, when One Proud Toddler sent written notice identifying the Fold-and-Go, alleging infringement, and including a claim chart. It alleges that Fridababy responded on July 31, 2024, denying infringement and disputing validity. The complaint says Fridababy contended that the flange in claim 11 must project horizontally away from the body, that the Fold-and-Go's non-slip base extends vertically downward, and that its handles do not extend substantially around the exterior perimeter of the body. It alleges that Fridababy identified references it contended anticipated or rendered obvious the asserted claims, threatened Patent Office proceedings against at least claims 11 and 14 and two unasserted design patents, and stated that it considered the matter closed. It alleges that One Proud Toddler responded on April 30, 2025, with a further notice and an expanded photographic claim chart mapping every limitation of claim 11.

The complaint alleges a further Fridababy response on June 12, 2025, which repeated the position that the flange must extend horizontally and newly asserted that claim 11 is indefinite, including because of the relationship between claim 11's requirement that the flange form the contact with the toilet seat and claim 14's pliable cover. It alleges that Fridababy said a further prior-art search had identified additional references that called the validity of the '875 patent into question, and that Fridababy did not identify those references. It alleges that Fridababy did not initiate the threatened Patent Office proceedings. It alleges that continued commercialization after the July 12, 2024 notice was willful, and it seeks enhanced damages under 35 U.S.C. 284 and attorney fees under 35 U.S.C. 285.

The complaint alleges that One Proud Toddler sells the Potty Proud Seat at retail prices generally ranging from $35.95 to $38.99, and occasionally discounts it to about $29.99, and that Fridababy's selling price for the Fold-and-Go has ranged from about $8.00 to $16.99. It alleges sales through One Proud Toddler's website and Amazon, and Fridababy sales through Amazon, Walmart.com, Target.com, and a later nationwide rollout in Walmart stores and Target stores. It alleges lost sales, price pressure, and harm that monetary damages cannot adequately remedy, and it asks for a permanent injunction under 35 U.S.C. 283, or in the alternative an ongoing royalty. The prayer also asks for a judgment of infringement and of willfulness, lost profits but not less than a reasonable royalty, supplemental damages and an accounting, enhanced damages under 35 U.S.C. 284, interest, costs, and fees under 35 U.S.C. 285. One Proud Toddler demands a jury. Counsel are Alessandra Glorioso and Gregory B. Collins of Dorsey & Whitney LLP. The complaint says Mr. Collins's application for admission pro hac vice is forthcoming.

What it means

The complaint's infringement theory treats the Fold-and-Go's perimeter structure, including the regions marketed as a non-slip base and as handles, as the flange in claim 11. That claim requires the flange to form the contact with the toilet seat and requires a gap between the lower surface of the body and the toilet seat. The complaint says Fridababy's July 31, 2024 response contended that the flange must project horizontally and that the accused structure extends downward, and that the June 12, 2025 response added an indefiniteness argument tying claim 11's contact language to the pliable cover in claim 14. Willfulness is pleaded from the July 12, 2024 notice, and the prayer asks for a permanent injunction under 35 U.S.C. 283. Google Patents lists the patent as active, with an anticipated expiration of May 21, 2041.

What to watch next

A return of service was filed on October 21, 2026. Watch for Fridababy's answer or a Rule 12 motion. Watch for any claim-construction dispute over the flange, and for any Patent Office proceeding on claims 11 and 14. The case can end at any time, including by settlement or voluntary dismissal.