Is this really a good faith argument you are making? If I could figure out how someone did something I am not allowed to do it for 30 years. They are not hiding this technology, it has been independently invented by multiple people. It is not unique enough to be able to ‘hide’ from society.
The second somebody makes a product available it can be reverse engineered. There are no secrets with mechanical objects or, in this case, an intuitice slicing method
Fuck patents. All information should be free.
FOSS or die