That is true in the USA. In the UK, for example, there is an academic exemption. Practically there would be very little damages that could be shown by infringing a patent once in a lab.
"Patents do not prevent "making". They prevent making for another's use. One can
make and use anything (well, anything legal, I'm not talking about
devices which are themselves illegal)." - Mike McCarty
Patents are for commercial use. This is just publishing the details of construction - anybody can make and use such a device for their personal use, despite any patents that exist.
[1] http://en.wikipedia.org/wiki/Research_exemption