Last week, the Patent Trial and Appeal Board (PTAB) issued 51 institution decisions, with denials narrowly edging out institutions by a 26-25 margin. In a decision on six Apple petitions, the PTAB terminated the consumer electronics giant’s challenges as time-barred; Apple had sought joinder to an already-terminated proceeding brought by Samsung. Elsewhere, Apple did successfully team up with Samsung and LG Electronics to challenge two patents owned by non-practicing entity Uniloc. Comcast had five petitions challenging a Rovi patent denied, but succeeded on one petition, which included seven obviousness challenges on that same Rovi patent. Expedia and various Internet travel booking websites lost out on a challenge to an IBM patent based on arguments already considered by the PTAB. Peloton Interactive also faces the potential invalidation of claims of three patents after a trio of successful institutions for Flywheel Sports.