This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

Sisvel S.p.A. and its U.S. subsidiary Audio MPEG, Inc. previously sued Thomson for patent infringement on MP3 technology, but those disputes were resolved in November 2005 with Sisvel granting Thomson a license to their patents. Motorola followed soon after, and signed with Sisvel to license MP3-related patents in December 2005. Except for three patents, the US patents administered by Sisvel had all expired in 2015, however (the exceptions are: U.S. Patent 5,878,080, expires February 2017, U.S. Patent 5,850,456, expires February 2017 and U.S. Patent 5,960,037, expires 9. April 2017.
Who was sued for patent infringement on MP3 technology?

Regardless of the ability of the Luftwaffe to win air superiority, Adolf Hitler was frustrated that it was not happening quickly enough. With no sign of the RAF weakening, and Luftwaffe air fleets (Luftflotten) taking punishing losses, the OKL was keen for a change in strategy. To reduce losses further, a change in strategy was also favoured to take place at night, to give the bombers greater protection under cover of darkness.[b] On 4 September 1940, in a long address at the Sportspalast, Hitler declared: "And should the Royal Air Force drop two thousand, or three thousand [kilograms ...] then we will now drop [...] 300,000, 400,000, yes one million kilograms in a single night. And should they declare they will greatly increase their attacks on our cities, then we will erase their cities."
The Luftwaffe air fleets were taking what kind of losses?

Israeli cuisine includes local dishes as well as dishes brought to the country by Jewish immigrants from the diaspora. Since the establishment of the State in 1948, and particularly since the late 1970s, an Israeli fusion cuisine has developed. Roughly half of the Israeli-Jewish population attests to keeping kosher at home. Kosher restaurants, though rare in the 1960s, make up around 25% of the total as of 2015[update], perhaps reflecting the largely secular values of those who dine out. Hotel restaurants are much more likely to serve kosher food. The non-kosher retail market was traditionally sparse, but grew rapidly and considerably following the influx of immigrants from Eastern Europe and Russia during the 1990s. Together with non-kosher fish, rabbits and ostriches, porkoften called "white meat" in Israelis produced and consumed, though it is forbidden by both Judaism and Islam.
When was Israeli fusion cuisine first developed?