The Sleekcraft test or the Ninth Circuit likelihood of confusion test, is used to determine trademark infringement in the United States, particularly in the Nin

The Sleekcraft test or the Ninth Circuit likelihood of confusion test, is used to determine trademark infringement in the United States, particularly in the Ninth Circuit Court of Appeals. This test evaluates several factors to assess whether there is a likelihood of confusion between two trademarks. Factors considered: 1. Strength of the mark 2. Proximity of the goods 3. Similarity of the marks 4. Evidence of actual confusion 5. Marketing channels used 6. Type of goods and degree of care likely to be exercised by the purchaser 7. Defendant's intent in selecting the mark 8. Likelihood of expansion of the product lines To apply this test, courts examine each factor and weigh them collectively to determine if there's a likelihood of confusion between the trademarks in question. No single factor is determinative, and the importance of each factor may vary depending on the specific circumstances of the case. The courts will fudge their reasoning with those eight pillars to fit their opinion.