What's difference does it make whether he has a patent or not? If his device is inferior then it is inferior, end of the story. Also I dont know where did yo get information about his internal because i messaged him some time ago and he insisted on precise. His internal has been in making for over a decade so I'm very sceptical.
Dude if you want reliable information about a nail just read medical journals
https://www.sicot-j.org/articles/sicotj/pdf/2017/01/sicotj160103.pdf
Your link only compares in-bone internals. On-bone is not even mentioned.
There are also journals showing great results with his on-bone technique.
Also, I didn't say it was a difference because of a patent, I said other companies probably don't invest in on-bone nails because Mitkovic has the patent.
I know more than you might think and it's certainly not the end of the story, dude.
And don't come up with this "they messed you up in India" bullcrap again, it sounds like you're thinking that I was stupid or are not entitled to have any opinion because of it.
That's a good example of the downsides of contributing to this "community", too many people (who even never did LL) love to keep attacking you with your own content.
All devices - external and internal - are made for lengthening one leg at a time and mostly intended for amounts of up to 4cm that are needed for medical reasons.
If most of you wouldn't be >180cm tall and heavy giants who wanted to lengthen ridiculous amounts on both legs simultaneously, weight-bearing and alignment wouldn't even be an issue!
If you are short and light, what the real LL patients are supposed to be, other devices than your Apple-priced hipster nails can be superior.
Now we are at the end of the story.
And yes, I'm having a bad day.