Have you considered filing trade marks to protect your brands? Registered trade marks can add real value to your business. Trade marks may be especially important if you are targeting consumers were reputation drives sales.
Your brands may be very important. Trade marks protecting your brands may be your most valuable asset to a purchaser of your business.
Some important technology trade marks include IPAD® and PRIUS®. Apple® and Toyota® make great products but it is their reputation that sells their products.