Average Co-Inventor Count = 2.50
ph-index = 3
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. Harbison-walker Refractories Company (3 from 21 patents)
2. Dresser Industries, Inc. (1 from 1,238 patents)
3. Indresco Inc. (1 from 38 patents)
5 patents:
1. RE45360 - Rotary kiln heat exchanger and method of assembling same
2. RE44612 - Rotary kiln heat exchanger and method of assembling same
3. 6688884 - Rotary kiln heat exchanger and method of assembling same
4. 5361557 - Offsetting interlocking tie-back assembly
5. 4900249 - Aluminum reverberatory furnace lining