JOHN WILLIAM HOWLETT innovation strategy

Patent filings in countries

#	Industry
#1	Engines, pumps and turbines
#2	Mechanical elements
#3	Materials and metallurgy
#4	Surface technology and coating
#5	Agriculture

#	Technology
#1	Cylinders for combustion engines
#2	Pistons and sealings
#3	Metallic material removal
#4	Cyclically operating valves
#5	Gearing
#6	Alloys
#7	Internal-combustion piston engines
#8	Steam turbines
#9	Casting metal
#10	Animal care

Publication	Filing date	Title
GB732944A	1953-06-25	Improvements in and relating to internal combustion engines, and cylinder liners therefor
GB713089A	1951-08-17	Improvements in or relating to stator blades for gas turbines and compressors and methods for their manufacture
GB686617A	1950-08-23	Machine for grinding or honing the side walls of split piston rings
GB594134A	1944-10-12	Improvements relating to securing a member in another member of a machine
GB584336A	1944-09-27	Piston
GB584960A	1944-09-07	Improvements relating to aluminium alloys
GB580753A	1944-05-30	Piston
GB512134A	1939-03-17	Providing cast iron articles with a cell-like surface
GB488687A	1937-10-05	Providing cast-iron articles with a cell-like surface
GB451156A	1935-08-06	Improvements in pistons
GB439134A	1934-09-18	Apparatus for use in fishing
US1978340A	1934-02-17	Locking metal inserts into cavities
GB428051A	1933-10-07	Pistons
GB427256A	1933-10-07	Piston-rings
GB380800A	1931-06-18	Improvements in and relating to pistons
GB376404A	1931-04-22	Improvements in and relating to pistons
GB321754A	1928-09-01	Improved shock absorber
CA351416A	None	Metal insert locking method