MBL is doing great. They are now offering the same product for hand washing as well as washing machines. The patent in dependent claim 45 says "wherein said method of using said detergent in claim 1 can be used in washing machines" and luckily, claim 46 says "wherein said method of using said detergent in claim 1 can be used for hand washing". Great thinking ahead! Right?

1. Ooops. Nope. While the patent covers the use, the field of use was narrowed down to only automatic machines

2. Yes of course, as it is an exclusive

3. Yes, as it is explicitly covered by the patent claim

4. both (b) and (c)