H E WILLIAMS INC has a total of 20 patent applications. Its first patent ever was published in 1985. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets electrical machinery and energy, machines and environmental technology are LINNO LTD, MAXLITE INC and CANLYTE INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 6 | |
#2 | Canada | 4 | |
#3 | United Kingdom | 3 | |
#4 | Mexico | 2 | |
#5 | Australia | 1 | |
#6 | Germany | 1 | |
#7 | France | 1 | |
#8 | Italy | 1 | |
#9 | Japan | 1 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Machines | |
#3 | Environmental technology | |
#4 | Civil engineering |
# | Name | Total Patents |
---|---|---|
#1 | Pyrtle Randy | 9 |
#2 | Williams Mark | 5 |
#3 | Eckels Paul | 5 |
#4 | Robertson Roger | 3 |
#5 | Lauderdale Bruce | 2 |
#6 | Robertson Roger Kevin | 2 |
#7 | Randy Pyrtle | 2 |
#8 | Weller Peter | 2 |
#9 | Backler Randy | 2 |
#10 | Lambeth Danny | 2 |
Publication | Filing date | Title |
---|---|---|
US2018227999A1 | Optical systems for variable correlated color temperature | |
CA2464552A1 | Suspended ceiling lighting system incorporating t-bar component | |
US6767116B2 | Lighting fixture assembly | |
US6565238B1 | Fluorescent light fixture with lateral ballast | |
MXPA99010081A | Phosphorous fluorescent light assembly excited by light emitting diodes. | |
CA2285507A1 | Phosphorous fluorescent light assembly excited by light emitting diodes | |
US5904415A | Fluorescent bulb connector assembly | |
US5678922A | Lighting fixture and anodized metallic louver system therefor | |
US4630181A | Fluorescent lighting fixture |