Patent landscapes › Kitchen & cooking
Is a cast iron pan patented?
Short answer: specific designs of a cast iron pan have been patented many times, but "a cast iron 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
- 589 US and WO patent publications since 2000 have a title matching “skilletfrying pancookware” or a close variant (our index of 9.7 million patent families; one publication per family).
- Among the 20 best keyword matches we examined, 8 were published in 2020 or later, and the earliest was published in 2006.
- Most frequent assignees in those matches: XINGTAI SANXIA CAST IRON CO LTD (1), BOGUSH STEVEN M (1), SONKIN OLEKSANDR LEONIDOVYCH (1), SHAW BRANDON H (1).
- Most common patent classes (CPC subclasses): A47J (19), C23C (3), B22D (2), C21D (1).
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 cast iron pan
- Cast Iron Cookware With Integrated Heat Diffuser US-2025031905-A1 2025 · BOGUSH STEVEN M
It is proposed to utilize a heat diffuser formed of a material with a relatively high level of thermal diffusivity in combination with cast iron cookware to improve the evenness of the cooking surface temperature. In particular, t…
View on Google Patents - Uncoated non-stick iron skillet and processing method therefor WO-2024234504-A1 2024 · HUBEI AISHIDA ELECTRIC CO LTD
An uncoated non-stick iron skillet and a processing method therefor. The uncoated non-stick iron skillet comprises a non-stick skillet body (1), wherein a covering structure (2) is provided above the non-stick skillet body (1); a …
View on Google Patents - Cooking appliance integrating functions of electric frying pan and electric heating pot WO-2024140331-A1 2024 · ZHOUCUN IMP KITCHEN APPLIANCE FACTORY
A cooking appliance integrating functions of an electric frying pan and an electric heating pot, belonging to the technical field of household appliances. The cooking appliance comprises a pot body (5) and a housing (2) fixed outs…
View on Google Patents - Method for manufacturing enamel-coated frying pan manufactured using enamel-coating aluminum alloy and die casting method, and enamel-coated frying pan WO-2021117731-A1 2021 · KIM JUN SU
According to the present invention, an enamel-coating aluminum alloy contains, in weight percent (wt%), 1.2-3.4 wt% of iron and 0.8-3.8 wt% of silicon, with the remainder consisting of aluminum and inevitable impurities, and can m…
View on Google Patents - Frying pan having functional handle WO-2021117992-A1 2021 · LEE GI WOO
The present invention relates to a frying pan having a functional handle and, more specifically, to a frying pan having a functional handle, comprising: a cooking vessel having a food accommodation space; a handle bracket protrudi…
View on Google Patents - Cast iron cookware and method for treating surface thereof WO-2019205114-A1 2019 · XINGTAI SANXIA CAST IRON CO LTD
A method for treating the surface of cast iron cookware, comprising: putting the cast iron cookware into thermal treatment equipment and carrying out nitrocarburization at 500-700°C for 5-7h, wherein a permeating agent employed du…
View on Google Patents - Frying Pan with Filtration System Built Into a Handle/Pour Spout. US-2019216263-A1 2019 · KELLY AMARE
A frying pan, from two inches to ten inches high, which includes an opening on the side of pan which connects through a removable filter screen holder to a hollow handle/spout that allows cooking oil and other liquids to be remove…
View on Google Patents - Skillet US-2018125298-A1 2018 · BAREBONES SYSTEMS LLC
A cast iron skillet comprises a pan portion having a generally planar base portion and an upwardly extending and outwardly tapered wall portion integrally formed with the base portion. A handle has a base portion attached to an ou…
View on Google Patents - Method of manufacturing cast-iron cookware and other cast-iron articles WO-2017146667-A1 2017 · SONKIN OLEKSANDR LEONIDOVYCH
The invention relates to methods of manufacturing different types of domestic and industrial cast-iron articles, and more particularly to manufacturing cast-iron cookware for food preparation. The present method of manufacturing c…
View on Google Patents - Fuzzy diamond grill frying pan US-2013108761-A1 2013 · KENTON DARLTON NEWTON
A grill pan has a diamond grill forming at least a portion of its cooking surface. The diamond grill may provide a diamond grill pattern on cooked food products without having to turn the food products in a 45 degree angle to make…
View on Google Patents - Healthy cookware US-8137723-B1 2012 · BLOUNT DANIEL RAY
A cast-iron cookware apparatus for cooking, or more particularly, “pan”searing meat on a typical charcoal or gas grill is provided. If used in conjunction with a grease catch pan the apparatus can be used in an oven. The cookware …
View on Google Patents - Cooking utensil with means of resting on pot, pan, skillet or otherwise US-2007289981-A1 2007 · SHAW BRANDON H
This invention relates to a cooking utensil with protrusions from its handle. While cooking, the utensils protrusions allow it to be rested on a pot or pan in order to prevent sauces and oils from dripping on stovetops, spoon rest…
View on Google Patents - Nickel-plated metal cookware US-2007295731-A1 2007 · HANSON MICHAEL T
Electroless-nickel-plated cast iron cookware, wherein a substrate consisting of a skillet, pot, pan or the like, is coated by cleaning and deoxidizing the surface of the cookware substrate, rinsing the substrate, soaking the subst…
View on Google Patents - Lid for cooking utensil or ovenware, in particular a lid for a frying pan or a cooking vessel, and cooking utensil and ovenware comprising said lid WO-2006084738-A3 2006 · NEWELL SAS
The present invention relates to a lid (2, 2') for cooking Utensil or ovenware, in particular a lid (2, 2') for a frying pan or a cooking vessel, comprising a rim (10), a handle or a knob (16, 18, 20), a first portion (4) …
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What this means for your idea
Because patents cover specific combinations of features, the useful question is not “has a cast iron 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.