From D&D Wiki
Weapon Feats: Feats that affect the way you use weapons, as opposed to attacks in general.
D&D 3e Feats
D&D 3.5e Feats
|Net Master (3.5e Feat)||Proficiency with using the net as a weapon.||You are an expert in the use of the fighting net. You know how to throw the net to increase its effect on a victim, and you are skilled at controlling the movements of your victim.|
D&D 5e Feats
|Alchemical Artillerist (5e Feat)||You have specialized in the numerous dangerous chemicals at the alchemist’s ﬁngertips.|
|Expeditious Alchemy (5e Feat)||Proficiency with alchemist's tools||You can produce alchemical items much more quickly than normal.|