Top all-time · #25880
Torbjørn Ludvigsen
Personal blog · torbjornludvigsen.com/bloghardwarescience
Torbjørn Ludvigsen's personal blog at torbjornludvigsen.com covers hardware and science. Since 2022, 3 different Hacker News readers have linked it 3 times. No feed was found, so read it on the site itself.
Too few sampled comments (3) to say how often HN recommends it.?
Why HN links it
HN readers link Torbjørn Ludvigsen's posts documenting prior art for the Hangprinter, a frameless 3D printer he built and filmed, in discussions of a patent on the same design.
Summarised by Claude from a sample of 3 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Torbjørn's webpage
Most-linked posts?
- /blog/hangprinter-is-prior-art/2 people · 2 mentions · first linked 2022-06-26
What Hacker News says?
I'm not sure if you're (just) playing devil's advocate, but the blog post[0] linked in the article covers quite a lot of instances of prior art[a] / multiple discovery / coincidences, going back years before the patent application was filed. Whether this is proof that the design was copied -- I can't say. [0] https://torbjornludvigsen.com/blog/hangprinter-is-prior-art/ [a] what I would call "prior art", anyway. IMHO…
Comment linking /blog/hangprinter-is-prior-art/
on “Gov’t Contractor Copies Open Source 3D Printing Concept and Patents It”That sounds facetious. I would try reaching out to the thieves themselves to discuss the prior art, or possibly the EFF: https://torbjornludvigsen.com/blog/hangprinter-is-prior-art/ https://www.eff.org/issues/patent-busting-project lindrf@ornl.gov postbk@ornl.gov lovelj@ornl.gov chesserpc@ornl.gov roschliac@ornl.gov
Comment linking /blog/hangprinter-is-prior-art/
on “Gov’t Contractor Copies Open Source 3D Printing Concept and Patents It”No, posting things (for example on YouTube) counts very well as prior art and helps you invalidate (or limit the scope of) patents that appear later. For a well-known case, consider Hangprinter, by Torbjorn Ludvigsen: a 3D printer without a frame. He had built it and documented the whole thing in YouTube videos. Then someone heard of the idea and went ahead and got a patent on it. Torbjorn turned on the Internet for…
Comment linking /blog/
on “Advice for first-time inventors from a patent engineer”