Presumably you'd be able to get a loan secured against the escrowed revenue. If this actually happened you'd no doubt see specific tailored financial solutions for this.
Where the _best_ of these will take fifty per cent as a fee?
Sounds a great deal.
I think what'd you'd actually see is specialist patent funding actuaries and patent evaluators making an interest rate bid dependent on the actual patent and inventor in question, much the way insurance industry works. The direct competition would be business loans, and maybe that'd be essentially what they were - secured business loans.