1
William M Louis: Membrane keyboard and method of using same. TypeRight Keyboard, Bernard L Kleinke, Jerry R Potts, William Patrict Waters, May 18, 1993: US05212473 (339 worldwide citation)

A membrane keyboard producing audible and tactile responses when individual character keys are depressed. To facilitate typing efficiency, the keyboard has membrane characters keys with different transverse heights and adjustable sensory responses.


2
William M Louis, Constance M Louis: Integrated pointing and drawing graphics system for computers. Willow Design, July 11, 2000: US06088023 (95 worldwide citation)

An integrated graphic tablet/touchpad can be toggled between an absolute (graphic tablet) input mode and a relative (touchpad) input mode. In the relative mode, a graphics window appears on an associated display only when pressure is exerted on an input surface, and a cursor can be moved by stroking ...


3
William M Louis: Ergonomic keyboard apparatus with left and right key section separated by an irregularly shaped space. TypeRight Keyboard Corporation, Bernard L Kleinke, Jerry R Potts, December 13, 1994: US05372441 (91 worldwide citation)

A keyboard arrangement with a pair of angularly disposed, spaced apart groups of character keys dedicated for operating use respectively by the left hand and the right hand of a user. A space bar key is operable by either thumb of the user and bridges between the two groups of character keys. The ro ...


4
William M Louis: Ergonomic keyboard apparatus and method of using same. Typeright Keyboard Corporation, Bernard L Kleinke, Jerry R Potts, Peter P Scott, April 2, 1996: US05503484 (81 worldwide citation)

A keyboard arrangement with a pair of angularly disposed, spaced apart groups of character keys dedicated for operating use respectively by the left hand and the right hand of a user. A space bar key is operable by either thumb of the user and bridges between the two groups of character keys. The ro ...


5
William M Louis: Integrating pointing device. Brown Martin Haller & Meador, January 12, 1988: US04719455 (48 worldwide citation)

A pointing and control device for moving a cursor on a visual display and for controlling various operations, being operated by hand and finger movements, including both fine movement control and gross movement control; the assembly includes a graspable outer cover and an inner puck with a finger cu ...


6
William M Louis, Telford L Dorr: Integrating graphics input device. Baker Maxham Jester & Meador, February 15, 1994: US05287121 (17 worldwide citation)

A graphics input device for use with a graphics processing system includes a stylus which can be manually manipulated by a user to generate graphics input signals representative of a graphics object to be drawn in a circumscribed area on a display device controlled by the graphics processing system. ...


7
William M Louis: Ergonomic keyboard apparatus and method of using same. Typerite Keyboard Corporation, Bernard L Kleinke, Jerry R Potts, April 12, 1994: US05302040 (14 worldwide citation)

A keyboard arrangement with a pair of angularly disposed, spaced apart groups of character keys dedicated for operating use respectively by the left hand and the right hand of a user. A space bar key is operable by either thumb of the user and bridges between the two groups of character keys. The ro ...


8
William M Louis, Constance M Louis: Integrated pointing and drawing graphics system for computers. Willow Design, January 6, 2004: US06674425 (12 worldwide citation)

An integrated graphic tablet/touchpad can be toggled between an absolute (graphic tablet) input mode and a relative (touchpad) input mode. In the relative mode, a graphics window appears on an associated display only when pressure is exerted on an input surface, and a cursor can be moved by stroking ...


9
William M Louis, Telford L Dorr: Integrating graphics input device. Baker Maxham Jester & Meador, July 21, 1992: US05132671 (9 worldwide citation)

A graphics input device for use with a graphics processing system includes a stylus which can be manually manipulated by a user to generate graphics input signals representative of a graphics object to be drawn in a circumscribed area on a display device controlled by the graphics processing system. ...


10
William M Louis: Ergonomic keyboard apparatus and method of using same. Bernard L Kleinke, Foley & Lardner, April 30, 2002: US06379060 (2 worldwide citation)

A keyboard arrangement with a pair of angularly disposed, spaced apart groups of character keys dedicated for operating use respectively by the left hand and the right hand of a user. A space bar key is operable by either thumb of the user and bridges between the two groups of character keys. The ro ...