Law on selling self-made electronic devices if I make a microcontroller or any electronic device and it has LEDs, it is not me who created these LEDs, I bought them, even chosen for the pack of transistors that I bought on Amazon, so if I want to market a device that uses these LEDs and transistors, do I pay copyright to the author / brand of these LEDs too? And what if I buy a ready-made Wi-Fi card or SIM card reader that I buy and integrate into my device, must I pay copyright also?
Under the First Sale doctrine, when intellectual property is imparted to an actual physical thing, the first commercial buyer of that actual physical thing (that is made with proper intellectual property licensing or permission) is entitled to use it without further intellectual property limitations. As Wikipedia explains at the link: The first-sale doctrine (also sometimes referred to as the &quot;right of first sale&quot; or the &quot;first sale rule&quot;) is an American legal concept that limits the rights of an intellectual property owner to control resale of products embodying its intellectual property. The doctrine enables the distribution chain of copyrighted products, library lending, giving, video rentals and secondary markets for copyrighted works (for example, enabling individuals to sell their legally purchased books or CDs to others). In trademark law, this same doctrine enables reselling of trademarked products after the trademark holder puts the products on the market. In the case of patented products, the doctrine allows resale of patented products without any control from the patent holder. A different analysis applies if the goods when first made were already infringing. But, in practice, the aggrieved IP owner usually sues the primary infringer or an importer of the infringing goods, rather than a retail purchaser, in those case.
Written down computer code is subject to copyright. If you do not have the permission of the owner to copy it you are breaching their copyright unless your use constitutes fair use/dealing.
No, it does not fall under fair use: It is commercial use in nature It is a copyrighted work It is hard to say what portion of the copyrighted work you'd be using based on your description, so test three is inconclusive It could be argued in your favor that the infringement would not have an impact on their potential market, but it could potentially impact the value If discovered the owner of the copyright could pursue action against the company you work for.
Ideas aren't property Your employer does not own your ideas. However, neither do you. Ideas are not something that is protected by intellectual property law. To be IP, you need more than an idea. What is IP? The most common types are: Patents - protect inventions and new processes Trade marks - protect logos, words and other branding Copyright - protects art, writing, music, film, and computer programs Registered designs - protects the visual design of a product Circuit layout rights - protect layout designs or plans of integrated circuits used in computer-generated designs Plant breeders rights - protect the commercial rights of new plant varieties. The normal operation of IP law is that if a person is engaged under a contract of service (e.g. an employment contract) then their employer owns all the IP they make which includes progress towards something that might be IP (e.g. all the work that leads up to a patentable invention). However, if they are engaged under a contract for service (e.g. an independent contractor), then the worker owns the IP. The work the employer owns is generally limited to work in the course of the employment. So if you are a software developer they will generally own all code you write that is useful for their business but won't own the romantic novel you write in your spare time. In either case, the specific contract can override the default assumption. What can you do? You can certainly use the idea for the app but you can't use anything that is subject to your employer's IP. That means you can't use any code or copy the user interface - it all has to be redeveloped from scratch. You also can’t develop something that would be of use to their business while you are still an employee.
Yes. The copyright owner of a work has the exclusive right to "reproduce the copyrighted work" or to make "derivative works" of it. 17 USC 106. Copyright law is older than the photocopier, and it applies to copies made by means of any technology. If your intent is to duplicate the protected work, whether you do it by tracing, photocopying, or even freehand, you are infringing that right. It is possible that you could squeeze into one of the copyright exceptions, such as fair use, but these are much narrower than people tend to assume they are (especially outside of the U.S.), and they boil down to: "Well, yes, I copied your copyrighted work, but..." The bottom line is: is it copyrighted? Did you copy it, in whole or in part? Then, unless you have a very good reason, you've infringed the copyright. Whether you do it by means of tracing paper, jellygraph, or iPhone doesn't matter.
IANAL, just a programmer with an interest in legal rules. Due to the very permissive nature of the MIT license, no, it does not appear that anything illegal has been done. Specifically, the section to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software (emphasis mine) grants everyone the right to modify your code and share those modifications, provided one includes the license. Since this person has included your license (including your copyright notice), they have followed the conditions of the license and are able to share your stuff. Legally. Ethically, I still think its ****. This might be a good starting point in selecting a license (note the Modification column). https://en.wikipedia.org/wiki/Comparison_of_free_and_open-source_software_licenses The CC-BY-SA license family, as mentioned by Ron Beyer in comments is on this list, for example. TL;DR: You unfortunately granted a more permissive license than what you wanted/needed to. This was a BadThing(TM), analogous to giving too broad of access rights to a method or class. Determine your desired permissions, then select a license that matches what you'd like to grant.
The chief legal problem might be (depending on how you build and operate the thing) the amount of Electro-Magnetic Interference (EMI) that you're causing. You are not exempt from FCC regulations, but § 15.23 Home-built devices. (a) Equipment authorization is not required for devices that are not marketed, are not constructed from a kit, and are built in quantities of five or less for personal use. (b) It is recognized that the individual builder of home-built equipment may not possess the means to perform the measurements for determining compliance with the regulations. In this case, the builder is expected to employ good engineering practices to meet the specified technical standards to the greatest extent practicable. The provisions of §15.5 apply to this equipment. Since the question assumes &quot;the builder knows what he's doing&quot;, we may assume the FCC demand &quot;the builder is expected to employ good engineering practices&quot; is met. But that also would assume that the builder knew about EMI in the first place.
Their code, their rules A copyright holder is free to offer their work under none, one or many licences. They can, at the same time, use their own work however they see fit without regard to the licences they have given/sold to others (except, they can only give one person an exclusive licence). As an analogy, let’s say I own a fleet of cars. I can drive my cars anytime I want. I can let Jim drive my cars anytime he wants for free. I can let Mary drive a specific car on Thursdays and only within 10km of the depot. I can let Joe drive my cars providing he pays me $50 a day. And I’m not going to let Fred drive them at all because Fred’s a jerk. Each of those is a different licence.