Question: Only ten other countries have more patents than Sweden.
About the article "Sweden", section "Science and technology".

Candidate passages:
Swedish inventions are novel ideas and machines that have been pioneered in Sweden.
In the 18th century Sweden's scientific revolution took off.
Previously, technical progress had mainly come from professionals who had immigrated from mainland Europe.
In 1739, the Royal Swedish Academy of Sciences was founded, with people such as Carolus Linnaeus and Anders Celsius as early members.
Sweden has a total of 33523 patents as of 2007 according to the United States Patent and Trademark Office, and only ten other countries have more patents than Sweden.
Although a lot of patents cannot count as inventions.
Therefore the number of patents per country is a relatively bad scale for measuring inventions that has been of progress to mankind. 
Tycho Brahe, born in 1546 in an area of present-day Sweden which was then Denmark, made the careful astronomic observations upon which Kepler proved and quantified the heliocentric Copernican solar system.
In the 18th century Sweden's scientific revolution took off.
Previously, technical progress had mainly come from mainland Europe.
In 1739, the Royal Swedish Academy of Sciences was founded, with people such as Carolus Linnaeus and Anders Celsius as early members.
Many of the companies founded by early pioneers still remain major international brands.
Gustaf Dalén founded AGA, and received the Nobel Prize for his sun valve.
Alfred Nobel invented dynamite and instituted the Nobel Prizes.
Lars Magnus Ericsson started the company bearing his name, Ericsson, still one of the largest telecom companies in the world.
Jonas Wenström was an early pioneer in alternating current and is along with Serbian inventor Nikola Tesla credited as one of the inventors of the three-phase electrical system.
The traditional engineering industry is still a major source of Swedish inventions, but pharmaceuticals, electronics and other high-tech industries are gaining ground.
Tetra Pak was an invention for storing liquid foods, invented by Erik Wallenberg.
Losec, an ulcer medicine, was the world's best-selling drug in the 1990s and was developed by AstraZeneca.
More recently Håkan Lans invented the Automatic Identification System, a worldwide standard for shipping and civil aviation navigation.
A large portion of the Swedish economy is to this day based on the export of technical inventions, and many large multinational corporations from Sweden have their origins in the ingenuity of Swedish inventors.
Swedish inventors held 41,735 patents in the United States , according to the United States Patent and Trademark Office.
As a nation, only ten other countries hold more patents than Sweden.
As of August 2011, Scuderi Group said its patent portfolio included more than 476 patent applications worldwide, more than 154 of which have issued as patents in more than 50 countries. 
Libav contains more than 100 codecs.
Many codecs that compress information have been claimed by patent holders.
Such claims may be enforceable in countries like the United States which have implemented software patents, but are considered unenforceable or void in countries that have not implemented software patents.
Furthermore, many of these codecs are only released under terms that forbid reverse engineering, even for purposes of interoperability.
These terms of use are forbidden in certain countries.
For example, some European Union nations have not implemented software patents and have laws expressly allowing reverse engineering for purposes of interoperability. 
FFmpeg contains more than 100 codecs, most of which do not just store uncompressed data.
Most codecs that compress information could be claimed by patent holders.
Such claims may be enforceable in countries like the United States which have implemented software patents, but are considered unenforceable or void in countries that have not implemented software patents.
Furthermore, many of these codecs are only released under terms that forbid reverse engineering, even for purposes of interoperability.
These terms of use are forbidden in certain countries.
For example, some European Union nations have not implemented software patents and have laws expressly allowing reverse engineering for purposes of interoperability.