LH

L. Leonard Hacker

UN Unknown: 2 patents #12,644 of 83,584Top 20%
📍 Washington, DC: #527 of 3,063 inventorsTop 20%
🗺 District of Columbia: #527 of 3,063 inventorsTop 20%
Overall (All Time): #1,012,534 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
8383923 System and method for musical game playing and training 2013-02-26
6988075 Patient-controlled medical information system and method 2006-01-17
6292812 System for issuing and developing investiture certificates and other documents 2001-09-18
6271453 Musical blocks and clocks 2001-08-07
5949010 Musical blocks 1999-09-07