Rayotek Scientific, LLC
Doing business as Mcdanel Optical Technologies
At a glance
EmployeesNot reported
In business sinceNot reported
HeadquartersSan Diego, CA
US patents8
SAM.gov UEIHASLCDE6KWT8
CAGE code1U5N2
Incorporated inDE
- crucibles
- glass solutions
- ceramics
- glass tubing
- sealing
- commercial aerospace
- defense
- medical
Named on the company’s own website, read JUL 29, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
8 US patents granted 2015–2025, 3 of them in the five years to SEP 2025.
Civil engineering 3Surface technology, coating 2Materials, metallurgy 1Machine tools 1Electrical machinery, apparatus, energy 1
- Method for manufacturing a fused metal sight window with a high flow temperature optical materialUS 12,371,370 · granted JUL 29, 2025
- Lens for protective gearUS 11,703,620 · granted JUL 18, 2023
- Lens for protective gearUS 10,845,519 · granted NOV 24, 2020
- Frac plug with anchors and method of useUS 9,657,547 · granted MAY 23, 2017
- Vacuum insulated glass panel with spacers coated with micro particles and method of forming sameUS 9,410,358 · granted AUG 9, 2016
Newest 5 shown · Granted to Rayotek Scientific, INC. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Rayotek Scientific, LLC | San Diego | CA | — | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.