Indrio Technologies
On-board laser-absorption spectroscopy sensor for detecting nitrogen oxides (NOx) in diesel engine exhaust streams
- Sector
- Clean tech
- Headquarters
- SAN JOSE, CA
- Latest Form D
- $1.2M, Oct 2021
- Total capital
- $3.2M
- Federal grants
- $2M
- 2 awards · 2020–2022
- Rank in peer group#2 of 53
- Private capital raised
- $1.2M
- 1 Form D · last Oct 2021
- 60 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 1
- 3 pending · first 2022
- Rank in peer group#17 of 53
Capital timeline
Latest events
- Federal grantNSF · Phase II · SBIR Phase II: Laser-based in-exhaust NOx sensor for automotive applications$1.7M
- Private capital raisedForm D · SEC · 1st filing$1.2M
- Federal grantNSF · Phase I · SBIR Phase I: Laser-based in-exhaust NOx sensor for automotive applications$276K
Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.
Federal first
11months
from Indrio Technologies’s first federal award to its first private round.
- First federal award · Nov 2020
- NSF · $276K
- First Form D · Oct 2021
- $1.2M · 1st Form D
- Awards before first raise
- 1 award
An association in public records, not a cause or a prediction.
Standing among 53 peers
Line = medianClean tech · Device
- Federal grants#2 · top 4%
- Granted patents#17 · top 32%
Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.
Founders and team
Researcher links verified by same-company patents and grants- Ritobrata SurResearcherExecutive Officer, DirectorLinked by 1 patent · $2M in grants as PI
- Peter ChidylloDirectorNamed in SEC Form D filings
What it has protected
USPTO · 1 granted of 4- PendingMultipass hydrogenated palladium optical cavities for detection of hydrogenUSPTOApplication 19108622
- GrantedLaser-based in-situ exhaust gas sensorUSPTOUS 11,221,279
- PendingMultipass Hydrogenated Palladium Optical Cavities For Detection Of HydrogenUSPTOApplication PCTUS2023032802
Show all 4 patent records
- Multipass hydrogenated palladium optical cavities for detection of hydrogenMar 19, 2026 · Application 19108622Pending
- Laser-based in-situ exhaust gas sensorJan 11, 2022 · US 11,221,279Granted
- Multipass Hydrogenated Palladium Optical Cavities For Detection Of HydrogenApplication PCTUS2023032802Pending
- Laser-based In-situ Exhaust Gas SensorApplication PCTUS2020013255Pending
Related companies, and why
- S-On Systems LLCSimilar federal contract value in Clean tech · null in contracts
- AquaMetals, LLCSimilar federal contract value in Clean tech · null in contracts
- SILIVHERE TECHNOLOGIES, INC.Similar federal contract value in Clean tech · null in contracts
- LAKRIL TECHNOLOGIES CORPORATIONSimilar federal contract value in Clean tech · null in contracts
- Lucent Optics, Inc.Similar federal contract value in Clean tech · null in contracts
- PHYLLOTECH INCSimilar federal contract value in Clean tech · null in contracts
Regulatory activity · Clean tech
- Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP ProvisionsEnvironmental Protection Agency
- Epyrifenacil; Pesticide TolerancesEnvironmental Protection Agency
- Fluoxapiprolin; Pesticide TolerancesEnvironmental Protection Agency
- Chlormequat Chloride; Pesticide TolerancesEnvironmental Protection Agency
Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.
Sources
Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.
How to read this page
Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.
Data freshness
SEC Form D filings through . SBIR and STTR awards through .