Is the KitchenAid Stand Mixer Patented?

Quick answer

Originally yes — core patent expired

The original Hobart planetary-action stand mixer was patented in 1917 and that core utility patent expired in 1934. KitchenAid (now Whirlpool) keeps the brand protected through trademarks and ornamental design patents on the iconic silhouette.

What to know

• The planetary-action mechanism is public domain — that's why every stand mixer brand can use it.
• What you can't copy is the specific KitchenAid silhouette: the design patent on the tilt-head profile is actively enforced.

Have your own invention idea?

If a product like KitchenAid Stand Mixercan get patent protection, your idea probably can too — assuming it’s novel. The cheapest first step is a provisional patent application, which locks in your priority date for 12 months while you validate the market. LegalZoom files provisionals from $199 + USPTO fees; you can also read the official USPTO patent basics first if you prefer.

Scan my idea for freeFile a provisional from $199

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