Editing Scissor switch (section)

===Patents===
There are a great many patents relating to scissor switches from many different manufacturers; examples:

{| class="wikitable"
! Manufacturer !! Patent !! Filed !! Notes
|-
| [[General Instrument]]
| [https://www.google.com/patents/US4433225 US 4433225]
| 1983
| Keycap levelling mechanism patent, that appears to be a forerunner of the scissor switch
|-
| [[SMK]]
| [http://www.google.com/patents/US5894117 US 5894117]
| 1997
| 
|-
| SMK
| [http://www.google.com/patents/EP1164463 EP 1164463]
| 1999
| 
|-
| [[Alps Electric]]
| [http://www.google.com/patents/US6312176 US 6312176]
| 1999
| 
|-
| SMK
| [http://www.google.com/patents/US6297461 US 6297461]
| 2000
| 
|-
| Alps Electric
| [http://www.google.com/patents/US7238907 US 7238907]
| 2003
| 
|-
| [[Mitsumi]]
| [https://www.google.co.uk/patents/EP1458000B1 EP 1458000]
| 2004
| 
|-
| Mitsumi
| [https://www.google.co.uk/patents/US7199320 US 7199320]
| 2006
| 
|}