What do bullet proof vests, fire escapes, windshield wipers, and laser printers all have in common?

Question

What are the answers to all these clues and what do those answers have in common?

1. An amber tinted paste used on a wienerwurst.
2. A purple fruit
3. Besides the number of days, the months of May and August have this in common.
4. A finely feathered and polychromatic avian friend.
5. A 7 letter word for a pigment like crimson.
6. A bleached and neutral hue.

Answer 1

All were invented by woman.