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Someone copied my technology. What are my options?

Working out what you actually have, before writing to anyone.

Do that first. It is the whole case.

A claim chart, element by element, tells you whether there is anything to assert - and it costs far less than finding out later.

  • Take the independent claims and put each feature in a row.
  • Against each, record what the competitor product actually has, with evidence.
  • Any missing element means that claim is not infringed, however similar the products look.
  • Then read your own prosecution history for concessions that narrow what you can assert.

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This is educational guidance, not personalised legal advice. It cannot see your documents, your dates or the prior art, and those are usually what decide the answer. Use it to understand the question, then take advice on your own facts.

Not sure whether this applies to your invention?

The honest answer usually needs someone to look at your actual disclosure, your timeline and the prior art. That is a conversation, not an article.