Confirm Amazon's worker-tracking wristband patent numbers and mechanism against the USPTO primary
claim-amazon-2018-worker-tracking-wristband-patents rests on NPR's 2018 secondary reporting, relayed through a batch capture that preserved no verbatim quote. Two gaps block it from going evergreen:
- Patent numbers (quant claim). The capture relays US 9,881,276 and US 9,881,277. Specific patent numbers have a Tier-1 primary home (the granted patent on USPTO / Google Patents) and should be confirmed there, along with the actual grant date (the capture says 2018).
- Mechanism (technical-mechanism claim). That the wristband tracks hand position via ultrasonic pulses and corrects it via haptic feedback is a mechanism claim currently resting on a paraphrase. It needs either the patents' own language or a verbatim Tier-2 quote.
What would answer it.
- Pull US 9,881,276 and US 9,881,277 (or whatever the real numbers are) from USPTO / Google Patents: confirm assignee (Amazon), grant date, and that the claimed mechanism matches (ultrasonic localization + haptic feedback).
- Failing primary access, capture a verbatim sentence from the NPR article to replace the placeholder
source_quote.
Resolving this lifts the [unverified-quant / unverified-mechanism] flag and the verbatim-quote gap on claim-amazon-2018-worker-tracking-wristband-patents. The uncontested fact — that Amazon patented a worker hand-tracking wristband around 2018 — does not itself need this; the specific numbers and mechanism do.