LP

Leonard J. Pearce

ND National Research Development: 1 patents #307 of 1,071Top 30%
OE Otis Elevator: 1 patents #966 of 1,840Top 55%
📍 Broadstone, GB: #3 of 23 inventorsTop 15%
Overall (All Time): #1,056,411 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5401593 High temperature secondary batteries John B. Jones, Jr., David R. Moore 1995-03-28
5086880 Elevator traveling cable grip 1992-02-11
5028499 Charge balancing of rechargeable batteries Graham Hazzard 1991-07-02
4189529 High temperature secondary cells Denis C. P. Birt, Colin R. Feltham, Graham Hazzard 1980-02-19
4185143 Water activated batteries Dennis C. P. Birt 1980-01-22