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Groups > comp.lang.python > #198020
| From | Bill Sloman <bill.sloman@ieee.org> |
|---|---|
| Newsgroups | sci.electronics.design, comp.lang.python |
| Subject | Re: Patents (was Re: google reads your mail) |
| Date | 2026-09-20 02:25 +1000 |
| Organization | A noiseless patient Spider |
| Message-ID | <118md1m$2ceiq$2@dont-email.me> (permalink) |
| References | (17 earlier) <118g989$4p5v$1@dont-email.me> <118gq8k$b8m6$1@dont-email.me> <118gub3$d3jg$1@dont-email.me> <118iild$v9sj$1@dont-email.me> <118kcgr$1mri1$3@dont-email.me> |
Cross-posted to 2 groups.
On 19/09/2026 8:04 am, Lawrence D’Oliveiro wrote: > On Fri, 18 Sep 2026 15:36:33 +1000, Bill Sloman wrote: > >> It didn't stop him getting an international patent on >> counter-current continuous cooking, where you convert wood chips >> into paper pulp by letting them fall down through a rising stream of >> sodium hydroxide. solution. We did get international visitors. One >> was >> >> https://en.wikipedia.org/wiki/Johan_Richter_(inventor) >> >> who'd invented the concurrent continuous digestor that my father >> eventually modified for counter-current operation. Johan had tried >> for some ten years to get it to work counter-current, and his >> company (Kamyr) never paid any royalty on my father's patent, though >> the industry adopted the process very rapidly. > > But you don’t need to prove something works before getting a patent. It's frequently helpful to have a working example. The counter-current continuous digestor was quite a tricky design - which is why Johan Richter could never get any of his versions to work - and potential users would set set up industrial scale trials. ' The provisional patent I'm working on is a lot simpler, and won't need a working example. > Thomas Edison put together the first working electric light-bulb. Did > he get the patent on it? No, because that was already taken by Joseph > Swan. Who'd done quite a much development work as Thomas Edison. Both inventors patented much the same invention at much the same time, and found it expedient to set up a joint company to exploit them. https://en.wikipedia.org/wiki/Joseph_Swan -- Bill Sloman, Sydney
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Re: google reads your mail "Johann \"Myrkraverk\" Oskarsson" <johann@myrkraverk.invalid> - 2026-09-16 23:39 +0800
Re: google reads your mail Bill Sloman <bill.sloman@ieee.org> - 2026-09-17 16:51 +1000
Re: google reads your mail Lane W <cactus_DAC@yahoo.com> - 2026-09-17 02:43 -0600
Re: google reads your mail Bill Sloman <bill.sloman@ieee.org> - 2026-09-17 23:34 +1000
Re: google reads your mail Lane W <cactus_DAC@yahoo.com> - 2026-09-17 08:43 -0600
Re: google reads your mail Bill Sloman <bill.sloman@ieee.org> - 2026-09-18 15:36 +1000
Re: Patents (was Re: google reads your mail) Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-09-18 22:04 +0000
Re: Patents (was Re: google reads your mail) Bill Sloman <bill.sloman@ieee.org> - 2026-09-20 02:25 +1000
Re: Patents (was Re: google reads your mail) Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-09-19 22:03 +0000
Re: Patents (was Re: google reads your mail) Bill Sloman <bill.sloman@ieee.org> - 2026-09-20 16:13 +1000
Re: Patents (was Re: google reads your mail) Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-09-20 08:09 +0000
Re: Patents (was Re: google reads your mail) Bill Sloman <bill.sloman@ieee.org> - 2026-09-20 18:25 +1000
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