Inventor · disambiguated record
Harold P. Hjalmarson
Also filed as: HJALMARSON HAROLD P
3 granted patents·21 citations·filing 1999–2022
66Inventor score
Top patents by PatentIndex Score
3 records- 0185US12218497B1Optically switched circuit breaker with cascaded transistor topologyNAT TECH & ENG SOLUTIONS SANDIA LLC·Filed 2022·Granted Feb 4, 2025·2 cites·20 claims
- 0253US6504859B1Light sources based on semiconductor current filamentsSANDIA CORP·Filed 2000·Granted Jan 7, 2003·4 cites·15 claims
- 0347US6248992B1High gain photoconductive semiconductor switch having tailored doping profile zonesSANDIA CORP·Filed 1999·Granted Jun 19, 2001·15 cites·16 claims
Join the waitlist — get patent alerts
Get an alert when Harold P. Hjalmarson files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →