Spectra Plasmonics Patents

Patent portfolio assigned to Spectra Plasmonics (verified via public assignee records). Queen's University (Kingston, Ontario) spinout; SERS-based portable chemical/drug detection (fentanyl). Received first US patent in Feb 2022 per Queen's Partnerships & Innovation, so has_patents=true. Competitors Scatr and DoseCheck were co-finalists in Health Canada's Drug Checking Technology Challenge; BTNX makes fentanyl test strips. No named paying customers on company site.