IMPINJ INC
RFID reader chips and systems for wireless connectivity of physical objects
- Sector
- Semiconductors
- Headquarters
- Seattle, WA
- Latest Form D
- $21.6M, Jul 2012
- Total capital
- $27.4M
- Federal grants
- None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
- Private capital raised
- $27.4M
- 2 Form D · last Jul 2012
- 171 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 34
- 6 pending · first 2023
- Rank in peer group#4 of 224
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 2nd filing$21.6M
- Private capital raisedForm D · SEC · 1st filing$5.8M
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.
Standing among 224 peers
Line = medianSemiconductors · Device
- Granted patents#4 · top 2%
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- Christopher DiorioResearcherExecutive Officer, DirectorLinked by 4 patents
- Albert YuDirectorNamed in SEC Form D filings
- Bradley FeldDirectorNamed in SEC Form D filings
- Carver MeadDirectorNamed in SEC Form D filings
- Clinton BybeeDirectorNamed in SEC Form D filings
- Evan FeinExecutive OfficerNamed in SEC Form D filings
Show all 17 people
- Gregory SesslerDirectorNamed in SEC Form D filings
- James ThompsonDirectorNamed in SEC Form D filings
- John QuistExecutive OfficerNamed in SEC Form D filings
- Kerry KrauseExecutive OfficerNamed in SEC Form D filings
- Mark MacKenzieDirectorNamed in SEC Form D filings
- Ron PaulsenExecutive OfficerNamed in SEC Form D filings
- Stephen ArnoldDirectorNamed in SEC Form D filings
- Steve VoitExecutive OfficerNamed in SEC Form D filings
- Tom AlbergDirectorNamed in SEC Form D filings
- Tom HullExecutive OfficerNamed in SEC Form D filings
- William ColleranExecutive Officer, DirectorNamed in SEC Form D filings
What it has protected
USPTO · 34 granted of 40- GrantedFast Frequency Switching For Rfid ApplicationsUSPTOUS 12,730,989
- PendingIdentifying Rfid Tag Features From Tag ReplyUSPTOApplication 19635658
- GrantedModified Rfid Tag Inventorying ProcessUSPTOUS 12,695,576
Show all 40 patent records
- Fast Frequency Switching For Rfid ApplicationsSep 8, 2026 · US 12,730,989Granted
- Identifying Rfid Tag Features From Tag ReplyAug 13, 2026 · Application 19635658Pending
- Modified Rfid Tag Inventorying ProcessJul 28, 2026 · US 12,695,576Granted
- Command Sequence For Initiating InventoryingJun 23, 2026 · US 12,664,515Granted
- Digital Identities For Physical ItemsJun 11, 2026 · Application 19461437Pending
- Rfid Ics With Privacy ModesMay 26, 2026 · US 12,639,542Granted
- Training Of Vision Detection Systems Using Rfid TagsMay 7, 2026 · Application 19484957Pending
- Rfid Tags Indicating Availability Of Additional Data To Be ReadApr 21, 2026 · US 12,608,576Granted
- Rfid Tags With Public And Private Inventory StatesMar 17, 2026 · US 12,579,399Granted
- Identifying Rfid Tag Ic Manufacturer Using Backscatter Link FrequencyFeb 3, 2026 · US 12,541,661Granted
- Digital Identities For Physical ItemsJan 27, 2026 · US 12,536,399Granted
- Controlling Rfid Tag Population Backscatter CharacteristicsJan 8, 2026 · Application 19333239Pending
- Item Identification Via Rfid Tag SecretNov 11, 2025 · US 12,468,915Granted
- Rfid Tag Location Using Inventory Cycles And Illumination AdjustmentOct 28, 2025 · US 12,456,023Granted
- Rfid Systems With Session-dependent RepliesSep 30, 2025 · US 12,430,611Granted
- Controlling Rfid Tag Population Backscatter CharacteristicsSep 23, 2025 · US 12,423,546Granted
- User-filtered Rfid InventoryAug 19, 2025 · US 12,393,797Granted
- Rfid Tags Enforcing Persistence While PoweredJul 15, 2025 · US 12,361,233Granted
- Fast Frequency Switching For Rfid ApplicationsJun 17, 2025 · US 12,333,374Granted
- Rfid Tag Clock Frequency Reduction During TuningJun 3, 2025 · US 12,321,798Granted
- Rfid Integrated Circuit Identifier Self-checkMay 13, 2025 · US 12,299,521Granted
- Adhesive Attachment Of Plasma-etch-diced Rfid Integrated Circuits With Structural SupportJan 30, 2025 · Application 18713755Pending
- Rfid Tag Rectifiers With Bias Current ReuseJan 21, 2025 · US 12,204,970Granted
- Enhanced Rfid Tag AuthenticationDec 17, 2024 · US 12,169,752Granted
- Rfid Loss-prevention Based On Transition RiskNov 19, 2024 · US 12,147,942Granted
- Environment-based Rfid Ic BehaviorOct 22, 2024 · US 12,125,364Granted
- Rfid Tags With Public And Private Inventory StatesSep 17, 2024 · US 12,093,767Granted
- Item Identification Via Rfid Tag SecretSep 10, 2024 · US 12,086,668Granted
- Rfid Ics With Privacy ModesJul 16, 2024 · US 12,039,390Granted
- Rfid Tag Parameter Determination Using PhaseJun 6, 2024 · Application 18567453Pending
- User-filtered Rfid InventoryMay 28, 2024 · US 11,995,498Granted
- Single-port Omnidirectional AntennaApr 30, 2024 · US D1,025,036Granted
- Fast Frequency Switching For Rfid ApplicationsApr 16, 2024 · US 11,960,955Granted
- Rfid Integrated Circuit Identifier Self-checkFeb 6, 2024 · US 11,893,446Granted
- Rfid Tag Clock Frequency Reduction During TuningDec 26, 2023 · US 11,853,826Granted
- Environment-based Rfid Ic BehaviorOct 24, 2023 · US 11,798,392Granted
- Controlling Rfid Tag Population Backscatter CharacteristicsOct 24, 2023 · US 11,797,813Granted
- Inventory-cycle-based Rfid Tag LocationOct 17, 2023 · US 11,790,192Granted
- High-speed Rfid Tag Assembly Using Impulse HeatingOct 17, 2023 · US 11,790,206Granted
- Rfid Tags Enforcing Persistence While PoweredOct 10, 2023 · US 11,783,140Granted
Related companies, and why
- Exactor, Inc.Similar federal contract value in Semiconductors · null in contracts
- EXFO INC.Similar federal contract value in Semiconductors · null in contracts
- APPLIED OPTOELECTRONICS INCSimilar federal contract value in Semiconductors · null in contracts
- Syndiant, Inc.Similar federal contract value in Semiconductors · null in contracts
- R2 SEMICONDUCTOR INCSimilar federal contract value in Semiconductors · null in contracts
- Vuzix CorpSimilar federal contract value in Semiconductors · null in contracts
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 .