That includes your products, recipes, marketing materials, logo, branding, packaging, website, business plan, theme songs, inventions, and more. You need to decide what constitutes intellectual property for your company. Obviously it includes anything co-founders create, relating to the company, during work hours. But what about ideas generated outside the office, such as when someone is on vacation, or a voice recording someone adds to their phone with their "idea". A broad definition related to the business of the company regardless of time or place can be used, but must be balanced with not discouraging employees to be creative in their own right and for their own interests.