Talk:List of Nikola Tesla patents

message: Telsa had methods for providing extremely low level of resistance to the passage of electrical current.
*  - Means for Increasing the Intensity of Electrical Oscillations - 1900 March 21 - A method for producing a "great increase in the intensity and duration of the (electrical) oscillations excited in a freely-vibrating or resonating circuit by maintaining the same at a low temperature". Producing increase intensity and duration of electric oscillations; Combination of a circuit to possess freely-vibrating excitations and of means for artificially cooling the circuit to a low temperature; Low temperature resonating circuit; Uses of electrical impulse oscillations; A circuit upon which oscillations are impressed, and which is adapted to vibrate freely, in combination with a receptacle containing an artificial refrigerant in which the circuit is immersed; superconducting oscillators in a series of transmitting and receiving circuits in a system for the transmission of energy.  
US patent 685012 - Classifications: 178/43; 174/15.5; 310/54; 327/527; 330/6; 330/61R; 333/24R; 336/58; 343/700R; 439/196; 505/825; 505/856; 505/870; 505/888  
*  . The The patent office classifies the patent as superconductivity technolgy, specifically "Dynamoelectric; liquid coolant" (310/54) and "Specific Identifiable Device, Circuit, or System; Superconductive (e.g., cryogenic, etc.) device" (327/527).
*  Ibib
:We have been over this before.  Low does not mean zero.  No technology exits even today to produce superconductivity with liquid air. Etc, ad nauseam. pstudier 23:30, 6 March 2006 (UTC)
replies: text: absolute zero is impossible (notice the It is unachievable in practice in the wikipedia article) ... near zero (eg., low) is attainable with certian types of liquifide gases. pstudier read a book about it (as I have), get a clue, Etc, ad nauseam ... J. D. Redding (PS ... "high-temperature" materials (such as yttrium, barium, and copper) all were  discovered well before the time of the patent ... and as a side note, it would even take some time for term "superconductivity" to come into wide use ... please don't be ignorant of the history!)
It is possible he actually did discover a near zero resistance method. Remember that he was a pioneer even by today's standards. There are ideas which are still far out there. So because of the negative resistance properties of a vacuum it could be that he, via the Tesla turbine or extreme heat, found a method to reduce the resistance to near zero. Or even negative, if you can believe it. A very interesting topic, if you're interested it taking it up further.Gammaworld1 (talk) 18:08, 7 May 2015 (UTC)
thread_title: Removal of references - superconductivity

message: (idea for improvement:) 
At the beginning of the section "===Fifty-one to one hundred===", it 
re-starts the numbering at one.  Isn't there some feature of the 
wiki mark-up that we use, that could be used to cause that section to 
start with 51?
In my opinion, if there isn't [already] (such a feature), then there 
should be -- in the near future.
(note:  a similar issue exists for the "101-and-up" section).  Just my 0.02 Mike Schwartz (talk) 22:12, 19 May 2008 (UTC)
thread_title:  Nitpick: (Wiki-markup? idea) why restart the numbering at 1 every 50? 

message: The link to the book "Man out of Time" is broken. 198.54.202.94 (talk) 22:50, 30 May 2008 (UTC)
thread_title: Broken Link

message: A Battle to Preserve a Visionary’s Bold Failure - New York Times - May 4, 2009 has this sentence: "Wikipedia says the inventor obtained at least 700 patents."  I put this on the Wardenclyffe Tower talk page (the article is about sale/preservation of the tower) but the article actually to be referring to this article. Americasroof (talk) 00:34, 8 May 2009 (UTC)
thread_title: New York Times quotes this article

message: I believe the dates of the patents should be the date of application, not the date of issue. They are currently given as date of issue.
The patentee's rights relate to the date of application, not the date of issue which in some cases may be many years later. An extreme example is Edison's US patent 480,567 which was issued after the patent had expired. Further, since this is essentially a historical article the date of invention, as evidenced by the date of application, is likely to be of more interest to readers. ianw 08:07, 9 October 2009 (UTC)
thread_title: Dates of patents

message: In the end of the opening paragraph there is that sentence. If there are plenty of documented but not patented inventions, then good. Otherwise that could be said about anyone. The other question is about Margaret Cheney's book. It was mentioned as a source and page number 62 was given. I found it on Amazon. On page 62 of her book Cheney does not mention anything about Tesla's inventions that he did not patent. Instead of that she writes: "Within six months after opening his shop, Tesla sent two motors to the Patent Office for testing and filed his first AC patents. In all, through 1891, he applied for and was granted a total of forty patents. So original and sweeping were they that he met with no delay." I have absolutely no doubt that Tesla invented more than he patented. My point is that on page 62 Cheney does not say anything about those inventions. Nikolas Ojala (talk) 09:35, 7 October 2010 (UTC)
thread_title: Many inventions developed by Tesla were not put into patent protection

message: whats the reference for "a magnetic field dome made of energy that will eventually be built big enough to protect a city from attack during wars" everything i've read said it was a  scalar field/beam interference. --198.209.32.252 (talk) 21:55, 3 May 2011 (UTC)
thread_title:  force field? 

message: "superconductivity" is the sudden and surprising drop to zero resistance that occurs in some metals at liquid-helium temperatures.  It has been recently produced at higher temperature (liquid nitrogen) using exotic ceramic materials.  The term does _not_ refer to the gradual reduction of resistance with cooling, which was a well known phenomenon at the time of Tesla.  The effect of cooling and resitance was studied long before Tesla, for example by Augustus Matthiessen in the 1860s, and was not a precursor to the phenomenon of superconductivity.  Superconductivity is a sudden phase change, similar to super-fluidity.  It is caused by Bose condensation of charge carriers that only become stable at an extremely low temperature -- so-called Cooper Pairs of electrons bound by phonon exchange force.  Tesla had absolutely nothing to do with the discovery of superconductivity, and his patents make no such claim.  The theories of quantum mechanics and solid state physics were not yet discovered, so he certainly did not deduce the existance of superconductivity.  There is no evidence that Tesla experimented with liquid helium, which was not produced until 1908.  DonPMitchell (talk) 21:16, 21 August 2012 (UTC)
replies: text: Superconductivity has a number of properties. Humans are currently working on a room-temperature superconductor. If we discover one it doesn't negate that it is a superconductor because it is not supercooled. At the time, I believe, simply reducing the resistance would suffice. And that was discovered using vacuums, ie Negative Resistance.Gammaworld1 (talk) 18:23, 7 May 2015 (UTC)
thread_title:  Tesla Did Not Discover Superconductivity 

message: No references have been provided for the patents that Tesla had received from other countries. For example, if you claim that Tesla received 1 patent from Japan or India, what was the nature of the patent?  — Preceding unsigned comment added by 120.138.110.226 (talk) 11:47, 13 February 2013 (UTC)
thread_title:  Patents in other countries 

message: Per this edit, I have removed the info box "Nikola Tesla worked on during his career": The deceptive wording and being on a Nikola Tesla patent page makes the reader think Tesla invented these things, some of which he did not. Fountains of Bryn Mawr (talk) 19:05, 16 October 2013 (UTC)
thread_title:  Cleanup unverified and deceptive claims. 

message: It is hard to figure out where the claims in the patent descriptions come from. I assume its quotes from the patent but the way its worded creates a WP:YESPOV problem, Tesla claims stated in Wikipedia's voice as fact. I have cleaned up one entry, much more should be done. Fountains of Bryn Mawr (talk) 20:42, 22 August 2015 (UTC)
thread_title:  WP:YESPOV problems 

message: The title of the article, when viewed on the page, should be de-italicized.--Solomonfromfinland (talk) 16:33, 2 August 2016 (UTC)
thread_title:  Italics 

message: The source for the supposed flying machine is garbage it makes all kinds of irrational claims and misrepresents Tesla quotes.  — Preceding unsigned comment added by 73.235.46.247 (talk) 16:26, 23 August 2016 (UTC)
replies: text: Agreed, allot of Tesla fan mumbo-jumbo there with article links to stuff that doesn't exist. Pruned it with extreme prejudice. Rewrote other parts trying to decipher this bunk. If anyone can find reliable sourcing for more please re-add it. Fountains of Bryn Mawr (talk) 00:21, 26 August 2016 (UTC)
thread_title:  Flying Machine 

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thread_title:  External links modified 

message: The article title is italicized. This is not appropriate.--Solomonfromfinland (talk) 04:52, 9 November 2021 (UTC)
thread_title:  Italics