At 04:18 PM 12/03/97 +0000, you wrote: >Maybe Bob should patent his clock before someone else starts >marketing it ... Sadly - that won't stop anyone from making a profit from it AND sharing a proportion of that profit with Bob. Patents are great for publishing and great for setting a date of note- worthiness - but cost a great deal to defend - often far more than any business plan can identify as 'unencumbered returns from commercialisation' and I think we can guess that real returns are usually less than those identified in a 'optimistic' business plan. In Australia we have the Federal Police to handle copyright infringements, but a patent infringement does not result in any (automatic) response from governments... Even with Oz Federal Police we have to raise a writ - but its cheaper by far than issuing action over possible patent infringement. So I tend to lean towards copyright as a mechanism coupled with trade-secrets - but, I think we already had several threads about that and PIC code copying already. Rgds Mike Some say there is no magic but, all things begin with thought then it becomes academic, then some poor slob works out a practical way to implement all that theory, this is called Engineering - for most people another form of magic. Massen