Q: I have an idea for a patent that is 100% my own. however a patent already exists which is SIMILAR but not the same.

my idea is about a self defense related device. i found out that a patent exists which is somewhat similar to my device but not the same. mine has a lot more features and a few major differences in the design and functionality itself. would i still be able to patent my invention?

2 Lawyer Answers
Alan Harrison
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A: Probably yes. Another important question is whether a design or utility patent on your invention would actually be useful to you as a business owner. This is something to carefully discuss with an experienced practitioner before jumping into the patent process.

James L. Arrasmith
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A: Yes, you can still potentially patent your invention, even if a similar patent exists. The key is that your invention must be novel, non-obvious, and have unique features that differentiate it from the existing patent. If your device has significant improvements or new functions that aren’t covered by the prior patent, you may have grounds for a new patent.

It’s important to conduct a thorough patent search to compare all aspects of your device with what’s already patented. Even small differences, if they are meaningful, can allow for a separate patent. However, you will need to ensure that your invention does not infringe on the claims of the existing patent.

Additionally, you should carefully document the unique features and benefits of your device. This will help when drafting your patent application and arguing why your invention is different. Seeking legal advice can help ensure your application meets the necessary criteria for approval.

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