Patrick's Press
Patrick's Press is a question writing company based out of Columbus, GA. They sell the "Campbell's Quiz" Books, as well as provide a weekly subscription system much like that of DACQ called "Accent on Academics". Unfortunately, their questions are really low quality.
Practice Questions
The weekly Patrick's Press set contains maybe 100 questions, split up between Current Events, This Week in History, General Knowledge, and Arts/Sports/Entertainment. There are also 2+ lightning rounds in each packet, as well as two tossups with related bonuses. One can play a four quarter style round on each practice packet, and still have questions to spare. There is a middle school level set and also a high school level set. The high school set has also been known to be marketed to collegiate programs.
One to two times a year, Patrick's Press will send out a "Black History Month" packet, usually featuring lightning rounds of the theme "Brown" or "Black". These special packets have also been known to use statements like "this first black on the Supreme Court".
Tournament Questions
Patrick's Press questions are used at some tournaments in New York and the Southeast, as well as one event in Minnesota. They are widely considered among the worst that high school quizbowl has to offer, on par with Questions Galore and Chip Beall. They also produce trivia night questions.
Buzzers
Patrick's Press appears to be the manufacturer or primary retailer of the Quik Pro line of buzzer systems.