
Re: Common practice
The second clause is illegal in the UK. Unless they are going to pay you the going rate for 10years.... Personally I'd never sign a 3months notice... Painful enough when you are made redundant hanging around for the last day.
The first clause is common, though easily worked around... Just don't publish anything until you have left and make sure the dates match... It may also be very difficult to enforce if the item you create or develop is not what the company normally does... Most sensible companies will sign away any perceived rights in these cases...