Product #1 (SK-II Magnetic Wand)
licensed : 28 April 2014 P&G Trade Mark App: (28 May 2014 - Singapore - other countries followed much later)
launched : 30 September 2014
interval : 5 months (4 months from TM App)
Product #2 (SK-II Magnetic Booster)
licensed : 28 November 2016 P&G Trade Mark App: 29 March 2016 (Singapore - others followed in October 2016 - indicates that the license date was probably before 28 November)
launched : 17 July 2017
interval : 7.5 months (15.5 months from first TM App - indicates long lead time from conception to market release, probably because this was powered device and a much bigger project)
Product #3 (Olay Magnemasks)
licensed : 3 April 2017 P&G Trade Mark App: 8 March 2017 (China/Taiwan/HK - other countries followed - indicates licence was probably granted before 3 April))
launched : 22 August 2017
interval : 4.5 months (5.5 months from first TM App - not a big project because a non-powered reduced version of the SK-II Booster re-branded to Olay)
Product #4
licensed : 3 April 2017 P&G Trade Mark App: There's no clear obvious TM that applies to this. However, there are a few contenders: (1) CELLSCIENCE (an Olay range that was TM'd in November 2016 with "magnetic" device references; (2) SK-II SKIN POWER (TM'd South Korea/Singapore on 3 November 2017)
launched : ?
interval : 10+ months