A) They are clearly crafted weapons. They don't have names.
B) They are ML 20. Sentient is only for ML 21 and higher.
Here is a quick table:
Question: Does the item have a "name"?
Yes - It is a named weapon.
No - It is not a named weapon.
Question: Does the item drop in game as an equippable item?
Yes - It could be a named weapon. But it needs to have a "name'.
No- Then it is probably not a named item. Most named items come from loot. Most crafted weapons (and armor) come from turn ins to a barter. The LoB Alchemical Weapons are an exception to this.
Question: Do you buy the item with mats from a barter?
Yes - It is probably a crafted weapon. It also probably doesn't have a name.
No - Then it might be a named item. if it has a name.
Question: Can the item be upgraded in any way?
Yes - Doesn't matter. If it has a name, it is still a named item.
However, some upgrade systems for named items (like Epic S/S/S systems) are not actually "upgrades". They are trade ins. You are consuming the named item and mats in exchange for a new named item that is more powerful. In these situations, you didn't actually "upgrade" your weapon. You traded it for a better one. So everything that was on the old weapon (augments, rituals from stone of change, etc) will be gone. Think of your upgraded weapon like a car. If you have a 2006 Ford F150 with custom wheels and after market sterio and go to the dealer and "upgrade" to a 2017 Ford F150 by giving them your 2006 Ford F150 and 20 grand in cash (they don't take tokens of the 12 or astral shards. I tried.

), the new 2017 F150 won't have the custom wheels you had or the after market stereo. Because they gave you a different one.
As a result, putting sentient Jewels, augments, and rituals on a named weapon that can be traded in is risky. Unless you are not planning on trading it in. If you are, I reccomend you remove the augment and jewels before trading it in. So you keep them and put them on your new/upgraded named item.
No -Still doesnt matter. if it has a name it is definitely a named item.