Patent landscapes › Kitchen & cooking

Is a nonstick pan patented?

Short answer: specific designs of a nonstick pan have been patented many times, but "a nonstick pan" as a general idea is not what is protected. What matters is the exact combination of features in your version.

What our index shows
  • 148 US and WO patent publications since 2000 have a title matching “nonstick pancookwarecoating” or a close variant (our index of 9.7 million patent families; one publication per family).
  • Among the 23 best keyword matches we examined, 15 were published in 2020 or later, and the earliest was published in 2000.
  • Most frequent assignees in those matches: ZHEJIANG SANHE KITCHENWARE CO LTD (3), SEB SA (3), FRAUNHOFER GES FORSCHUNG (2), FERRO CORP (2).
  • Most common patent classes (CPC subclasses): A47J (16), B05D (8), B32B (3), C23C (3).

Counts come from keyword matching on titles and abstracts, so they are indicative, not a legal count. Some matches are different products that share a word.

14 real patent publications related to a nonstick pan

  1. Nonstick pan US-2026150997-A1 2026 · ZHEJIANG SANHE KITCHENWARE CO LTD
    A nonstick pan includes a metal pan body, where an inner surface of the pan body is provided with dimples to form a concave-convex portion on the inner surface of the pan body; the pan body is subject to a pre-treatment process to…
    View on Google Patents
  2. Coating-free non-stick pans and preparation methods thereof US-2026144402-A1 2026 · ZHEJIANG JIUKANG ELECTRIC APPLIANCES CO LTD
    Embodiments of the present disclosure provide a coating-free non-stick pan and a preparation method thereof. An inner surface of the non-stick pan is provided with a uniformly distributed micro-nano concave-convex structure. The m…
    View on Google Patents
  3. Nonstick pan and manufacturing method thereof US-12502024-B2 2025 · ZHEJIANG SANHE KITCHENWARE CO LTD
    A nonstick pan includes a pan body, where an inner surface of the pan body is provided with protruding dots; the protruding dots include a central protruding dot and surrounding protruding dots; the central protruding dot is locat…
    View on Google Patents
  4. Nonstick pan and manufacturing method therefor WO-2025118840-A1 2025 · ZHEJIANG SANHE KITCHENWARE CO LTD
    A nonstick pan and a manufacturing method therefor. The nonstick pan comprises a pan body. Protrusions are provided on the inner surface of the pan body, the protrusions including a central protrusion and distributed protrusions. …
    View on Google Patents
  5. Nonstick cookware materials, and methods for manufacture and use US-12150586-B2 2024 · ADVANCED FLEXIBLE COMPOSITES INC
    Heat resistant and/or nonstick polymer materials and composites, and cookware including a food support surface comprising an integrated or attached cooking surface formed of the materials and composites. The cookware can includes …
    View on Google Patents
  6. Compressor assembly with nonstick coating and method of manufacturing same US-11873724-B2 2024 · GM GLOBAL TECH OPERATIONS LLC
    A compressor assembly may include a compressor housing and a compressor impeller disposed within the compressor housing. The compressor housing may have an internal aerodynamic surface that defines a circumferentially extending vo…
    View on Google Patents
  7. Surface-modified silicone, use thereof in nonstick coatings and composite material containing same WO-2021001448-A1 2021 · FRAUNHOFER GES FORSCHUNG
    The invention relates to a surface-modified silicone, wherein a particularly small amount of carbon has been exchanged in said surface-modified silicone compared with an unmodified silicone, to a composite material comprising said…
    View on Google Patents
  8. Non-stick coating spraying process for non-stick pan with protruding-recessed pattern WO-2021114565-A1 2021 · LI SHIJU
    Disclosed is a non-stick coating spraying process for a non-stick pan with a protruding-recessed pattern. The process comprises: firstly, carrying out a sandblasting treatment on the inner surface of a pan body blank, wherein the …
    View on Google Patents
  9. Nonstick composite materials and molded nonstick cookware WO-2020214682-A1 2020 · ADVANCED FLEXIBLE COMPOSITES INC
    Heat resistant and/or nonstick polymer materials and composites, and cookware including a food support surface comprising an integrated or attached cooking surface formed of the materials and composites. The cookware includes a la…
    View on Google Patents
  10. Cooking utensil comprising a hard base made from ceramic and/or metal and/or polymer material and a nonstick coating containing a fluorocarbon resin US-10722069-B2 2020 · SEB SA
    The invention relates to a cooking utensil comprising a hollow bowl with a base and a side wall rising from the base, and including at least one fragile area. The bowl has a concave inner surface for receiving food, as well as a c…
    View on Google Patents
  11. Cooking vessel with nonstick coating US-8540107-B2 2013 · LEE CHANGHO
    The invention relates to a cooking vessel having a non-stick coating, a handle and a vessel body. According to the invention, the inner surface of the vessel body is provided with a multiplicity of oil wells, the inner side of whi…
    View on Google Patents
  12. Cookware article including an outer nonstick coating comprising a decoration on the outer base WO-2011086276-A1 2011 · SEB SA
    The present invention relates to a cookware article (1) including a metal substrate in the shape of a shell (2), the internal surface of which is provided with an outer nonstick coating (3) (in particular PTFE-based), having a dec…
    View on Google Patents
  13. Sol gel nonstick coatings with improved thermal stability WO-2006122858-A1 2006 · BSH BOSCH SIEMENS HAUSGERAETE
    The invention relates to a coating on a substrate that is/can be subjected to high thermal loads. The coating is a sol gel layer system based on silicates, based on titanates, aluminates, borates or zirconates or based on the nano…
    View on Google Patents
  14. Ceramic substrate for nonstick coating WO-0056537-A1 2000 · FERRO CORP
    The present invention provides new and useful nonstick coatings for use on pure aluminum, alloys of aluminum, or aluminized steel surfaces, methods of forming such nonstick coatings, and articles of cookware having such nonstick c…
    View on Google Patents

What this means for your idea

Because patents cover specific combinations of features, the useful question is not “has a nonstick pan been patented?” but “has my combination of features been described before?” Kitchen gadgets are a crowded, mature field; novelty usually sits in one specific mechanism, the material, or how two familiar functions are combined.

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Guides that help with this

First-look landscape. Not exhaustive. Not legal advice. This page lists keyword-matched publications from a limited database; it does not say whether any product is or isn't covered by a patent, whether a patent is still in force, or whether your idea is patentable. Consult a registered patent attorney or agent.