It takes a bit of work to realize how things would tend to naturally shift without these, but it appears it can work out better for most everyone, except patent lawyers and companies that make a living off trying to deny others from doing something. I've had multiple times where I developed something for a company only to find out later that someone else appeared to have claimed that line of thought as their own private property (frustrating and wasteful). Basically, with privacy or private property providing the physical protections needed and the de facto monopoly an inventor/creator has over their creation (you don't need anyone else to tell someone whether or not their idea is unique or valuable - no lawyer or court should be involved in deciding this - it's the users/customers etc. that are what should really be determining the value) and given the consideration that people are willing to pay for such designs/creations, there are alternatives that have many benefits and even increase the value and usefulness of those designs/creations and similarly can have the writer/designer/engineer etc. receive more compensation with fewer middle men and no enforced single line of production, but instead open competition in the entire "path" (the main change would appear to be that such designs etc. can't be entirely released but instead marketted with various samples, claims that need to be met when released and so likely an alternative service similar to an escrow would appear the best alternative. For example, if someone discovered how to cure cancer with household chemicals

, they could either directly sell the idea to someone else or market it with claims of the benefits and not release the novel aspects and if the claims aren't met then some arbitration could be necessary).
As another example, if Britney Spears made a new video, samples of it could be posted on-line and released when people have offered sufficient compensation to the producers. So they could ask for x dollars and various interested people could make offers toward having the video released. If or when the offers appeared sufficient, the rest of the video could be released. If there was any form of additional restrictions, that should be determined by agreements between the people involved (that could be difficult to trace and enforce though and would be unlikely, unless it's a very limited audience - the best bet is to simply ask for sufficient compensation up front and let people derive whatever benefit they can from there - attaching lots of strings simply lowers the value of the material).