Delaware Form PF-1 is the state's form for filing a Protective Filing for a Creditor's Claim. The form is required when an individual or entity is seeking to protect a claim against the assets of a debtor who has filed for bankruptcy protection in Delaware. There are two types of Delaware Form PF-1: PF-1A for individuals and PF-1B for businesses. Each form requires information about the creditor, the debtor, the claim, and the debtor's bankruptcy filing. PF-1A and PF-1B both require supporting documents that must be attached to the form to be valid. Once the form and supporting documents have been filed, the creditor's claim is protected.