Leather Jacket unlock on multiple minions

If I equip the same Leather Jacket on many minions on the same turn, do everyone of them get the end-of-turn unlock, or just the one wearing the jacket by the end of turn?

Name: Leather Jacket
[Sabbat:C, SW:C/PB/PT/PV, FN:PS, CE:PTo/PTr, BH:PN, Third:C/PB2/PM2]
Cardtype: Equipment
Equipment.
If the action to equip with the Leather Jacket is successful, unlock the acting minion at the end of the turn. Bearer may burn Leather Jacket to prevent all the damage from the opposing minion's strike. A minion may have only one Leather Jacket.
Artist: Tim Bradstreet & Grant Goleash; T. Bradstreet & G. Goleash

A similar question applies to Rowan Ring; if Rowan Ring is used through Horrid Reality to torporize someone, and is afterwards shuffled to the library, does the torporized vampire not lock as normal even though Rowan Ring is not there anymore?

Name: Rowan Ring
[Jyhad:R, CE:R, LoB:PI, KoT:R]
Cardtype: Equipment
Cost: 1 pool
Unique melee weapon.
Strike: Send the opposing vampire to torpor. This card is transferred to that vampire, and he or she doesn't unlock as normal during the unlock phase as long as he or she remains in torpor.
Artist: Richard Thomas; Anson Maddocks

Name: Horrid Reality
[DS:U2, FN:PR]
Cardtype: Combat
Cost: 2 blood
Discipline: Chimerstry
Only usable before range is determined in combat.
[chi] Equip this minion with the first weapon you find in your library (working down from the top). This weapon does not contest any card in play. Do not pay the cost for this weapon. Shuffle afterward. At the end of the combat, burn the weapon if it is still in play.
[CHI] As above, but return the equipment to your library at the end of combat if it is still in play. Shuffle afterward.
Artist: Anson Maddocks

Tl:dr Do equipment effects linger, or are they only active when they are worn?

Kraus wrote:

If I equip the same Leather Jacket on many minions on the same turn, do everyone of them get the end-of-turn unlock, or just the one wearing the jacket by the end of turn?

The answer is in the card text: If the action to equip with the Leather Jacket is successful, unlock the acting minion at the end of the turn.

The unlock effect is the result of the successful action and has no bearing on owning the Leather Jacket, cf. NRA PAC.

Kraus wrote:

A similar question applies to Rowan Ring; if Rowan Ring is used through Horrid Reality to torporize someone, and is afterwards shuffled to the library, does the torporized vampire not lock as normal even though Rowan Ring is not there anymore?

Again, the answer is part of the card text: Strike: [...] he or she doesn't unlock as normal during the unlock phase as long as he or she remains in torpor.

The strike causes the (lack of) unlock effect.