Average Co-Inventor Count = 1.48
ph-index = 6
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Halliburton Energy Services, Inc. (4 from 11,787 patents)
2. Lasalle Ipr A/s (2 from 2 patents)
3. Smedvig Ipr A/s (1 from 1 patent)
4. Smedvig Technology As (1 from 1 patent)
8 patents:
1. 8051914 - Well packing
2. 7832491 - Well packing
3. 7472757 - Well packing
4. 7143832 - Well packing
5. 5655607 - Downhole tool for pressure testing of oil and gas wells
6. 5069488 - Method and a device for movement-compensation in riser pipes
7. D317298 - Cable protector
8. D317150 - Cable protector