The phrase "all of which pertained" is correct and usable in written English.
It can be used to refer to multiple items or subjects that are relevant or related to a particular topic or context.
Example: "The documents included several reports, all of which pertained to the recent changes in policy."
Alternatives: "all of which were relevant" or "all of which related".
For this he was charged on 12 counts, all of which pertained to credit card fraud.
In turn, the government agreed to drop four more probation violation charges, all of which pertained to Mr. Nakoula's work on the "Innocence of Muslims".
The office was searched and there were found and taken therefrom approximately a dozen bottles of assorted intoxicating liquor, a large number of memoranda, books of account, records, filing cases, and other papers all of which pertained to unlawful dealings by Gowen and Bartels in intoxicating liquors.
Eighteen different uncertainties about this evidence were coded 28 times, 56% of which pertained to evidence commonly appraised and 44% to evidence considered by only some agencies.
Fifteen Environmental Reports on strategic actions prepared between 2006 and 2009 were scrutinized for this study, one of which pertained to national policy and the rest to responsible authority programmes, plans or strategies throughout Scotland.
For the quarter that ended Aug. 31, Micron reported net income of $64 million, or 8 cents per share, including $45 million of one-time legal fees, the bulk of which pertained to a settlement with Tessera Technologies.
In the paper by Borko and colleagues, authors provide insights into the adaptations they needed to make in their PD program as they worked with an urban district to develop their capacity to support mathematics reform, the most notable of which pertained to teacher leaders' support.
Manstein faced seventeen charges at the trial, three of which pertained to events in Poland and fourteen regarding events in the Soviet Union.
For two straight hours, Iraniha alone was asked "all sorts of ridiculous questions" by an FBI agent and a State Department official about a range of topics, most of which pertained to him being Muslim, having traveled to Muslim countries and his political views, primarily to do with activism for "Muslim" issues, such as Palestine and U.S. foreign policy.
Three meta-themes were identified, one of which pertained to trends and issues among Canadian medical tourists.
In 1998, there were 189,442 active cases on file, three quarters of which pertained to single status individuals.
