John G Stein Patents

Source – Unknown.
1
Davies William: Sintered aggregates. John G Stein & Company, September 21, 1971: US3607339 (6 worldwide citations)

2
Chequer brickwork construction regenerators. John G Stein & Company, Joseph Fraser Hyslop, December 28, 1934: GB421693-A (3 worldwide citations)

3
Production of alumina from clay or other aluminous ore. John G Stein & Company, Joseph Fraser Hyslop, March 2, 1938: GB480921-A (3 worldwide citations)

4
Improvements relating to the manufacture of refractory material. John G Stein & Company, Joseph Fraser Hyslop, February 12, 1940: GB517908-A (3 worldwide citations)

5
Birse Alexander Low: Improvements relating to the hanging of refractory bricks. John G Stein & Company, July 22, 1964: GB964646-A (1 worldwide citation)

6
Process of and apparatus for the production of slip-cast ceramic bodies. John G Stein & Company, Henry Charles Biggs, March 8, 1938: GB481217-A (1 worldwide citation)

7
Muffle kiln. John G Stein & Company, Joseph Fraser Hyslop, Henry Charles Biggs, March 1, 1934: GB406459-A (1 worldwide citation)

8
Chequer brickwork construction for regenerators. John G Stein & Company, Joseph Fraser Hyslop, November 2, 1936: GB456036-A (1 worldwide citation)

9
Birse Alexander Low: Improvements relating to furnace roofs. John G Stein & Company, May 4, 1966: GB1028176-A (1 worldwide citation)

10
Davies William: Lightweight aggregate. John G Stein & Company, December 23, 1970: GB1217003-A (1 worldwide citation)

11
Davies William: Synthetic aggregate suitable as a road surfacing material. John G Stein & Company, July 16, 1969: GB1158208-A (1 worldwide citation)

12
Production of alumina from clay or other aluminous ore. John G Stein & Company, Joseph Fraser Hyslop, October 6, 1942: GB548332-A

13
Process for the production of alumina and magnesia. John G Stein & Company, Joseph Fraser Hyslop, Ralph Mackenzie, May 5, 1943: GB553034-A

14
Improvements relating to chequer brick-work construction for regenerators. John G Stein & Company, Joseph Fraser Hyslop, June 30, 1932: GB375436-A

15
Process for the separation of iron and aluminium oxides. John G Stein & Company, Joseph Fraser Hyslop, Ralph Mackenzie, August 24, 1933: GB397288-A

16
Improvements in the manufacture of bricks or shapes. John G Stein & Company, Joseph Fraser Hyslop, November 19, 1931: GB361166-A

17
Improved refractory brick. John G Stein & Company, Joseph Fraser Hyslop, Jan Gworek, May 16, 1962: GB896467-A

18
Birse Alexander Low, Sanderson Kenneth William: Improvements in and relating to refractory bricks. John G Stein & Company, December 8, 1965: GB1012096-A

19
Garniture de four. John G Stein & Company, June 23, 1967: FR1486097-A

20
Perfectionnements à la pose de gaines métalliques autour de briques réfractaires. John G Stein & Company, October 16, 1964: FR1375379-A
Birse Alexander Low: Thermal insulation of tubes and pipes. John G Stein & Company, December 10, 1969: GB1173430-A

22
Birse Alexander Low: Supports for furnace roofs and the like. John G Stein & Company, September 27, 1967: GB1084839-A

23
Gray William: Improvements relating to furnace roofs. John G Stein & Company, March 16, 1966: GB1022678-A

24
Evans Jack: Improvements in or relating to basic refractory bricks and to methods of and machines for the production thereof. John G Stein & Company, May 4, 1966: GB1028661-A

25
Hyslop Joseph Fraser: Improvements relating to refractory bricks. John G Stein & Company, December 31, 1965: GB1014730-A
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16/08/1893 – Improvements in Dumping Trucks for Conveying Materials Fireclay and other Works.
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