Patents per Year
Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7514874 | Ceramic metal halide lamp with specific halide dosage to mercury weight ratio | Zoltan Koltai | 2009-04-07 | $54,126,000 |
| 6731068 | Ceramic metal halide lamp | James T. Dakin, James A. Leonard, Gergely Ormandlaky | 2004-05-04 | $54,354,000 |
| 6097137 | Electrodeless discharge lamp | Graham M. Forsdyke, Mahamed H. Girach | 2000-08-01 | $170,662,000 |
| 5994840 | Controlling the transmission of light from light sources | Graham M. Forsdyke | 1999-11-30 | $112,915,000 |
| 5952780 | Amalgam for use in fluorescent lamps comprising lead, tin, mercury together with another of the group silver, magnesium, copper, nickel, gold and platinum. | Graham M. Forsdyke, Alan Thomas Dinsdale | 1999-09-14 | $82,799,000 |
| 5086258 | Discharge tube arrangement | David O. Wharmby | 1992-02-04 |