# M Cardullo — Patents explained on PatentBrief

M Cardullo has 1 landmark patent explained in plain English on PatentBrief.

- [How Radio Frequency Identification (RFID) Tags Were Invented](https://patentbrief.org/patent/us/3713148/rfid-transponder-cardullo) — granted 1973
  A 1970 patent describing a remote tag that powers itself using incoming radio signals to read and write data, forming the foundation of modern RFID technology.

**Full profile:** https://patentbrief.org/inventor/m-cardullo

---

_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._