David M Lilenfeld, Age 543963 Statewood Rd NE, Atlanta, GA 30342

6744421, Jun 1, 2004

Feb 19, 2003

10/367153

David M. Lilenfeld - Atlanta GA, 30305

G09G 508

345157, 345163, 345167

The present invention is a cursor control device to be used in conjunction with a computer, receiver or other processing unit that allows for convenient and comfortable use while being hand held or while resting on the desk top. The cursor control device being comprised of a body with a shape for fitting in a user hand so a user can operate the cursor control device in hand held and desk top uses. The body also being comprised of a cursor control, at least one button, and having a control circuit inside the body which is connected to at least one button and the cursor control. The device further having a communication link connectable between said control circuit and a processing unit.

6819557, Nov 16, 2004

Sep 8, 2003

10/656591

David Michael Lilenfeld - Atlanta GA, 30305

G06F 116

361686, 345179, 401258

An ergonomic stylus for a personal digital assistant, a tablet PC or other computer with a pen-based interface, with a body consisting of a tip and two or more arms. The arms reflexively assume an open position when removed from the pen slot of the pen-based computer and thereby provides the user with an ergonomic gripping area. The arms assume a closed position for storage in the pen slot in the PDA or other pen-based computer. It is therefore the primary object of the current invention to provide users of pen-based computers with a single device which is both comfortable for use over a prolonged period and which is storable in the pen slot of the pen-based computer.

8297774, Oct 30, 2012

Oct 13, 2006

11/580083

David Michael Lilenfeld - Atlanta GA, US

F21S 8/08

362 98, 362 99, 362436, 362235, 362238

The present invention relates to a booklight which is free-standing or attaches to a book cover, a bed frame or other supporting object to facilitate the reading of a book. Attached to each arm is at least one light-radiating source which may be housed within a shade. The light-radiating source may be an incandescent, fluorescent or LED bulb, or the like, as is known in the art. The angle and direction of each light-radiating source can be manually and separately adjusted by the user to focus light on different areas of the book simultaneously.

2004014, Jul 29, 2004

Jan 29, 2003

10/352358

David Lilenfeld - Atlanta GA, US

G06F001/16
G06F001/16

361/686000

An ergonomic stylus for computer touch-screen, including that used in personal digital assistants, with a body consisting of a tip and two or more arms. The arms reflexively assume a spread position when removed from the pen slot of a personal digital assistant to be gripped by the user and to provide the user with a hand position which is more relaxed and ergonomic than with styluses known in the art. When being replaced and being stored in the pen slot, the arms of current invention assume a pinched position so that the current invention fits within the limited confines of the pen slot.

6680728, Jan 20, 2004

Jan 24, 2000

09/489796

David Michael Lilenfeld - Atlanta GA, 30339

G09G 500

345156, 345157

The present invention is a cursor control device to be used in conjunction with a computer which allows for convenient, easy and ergonomic hand-held or work surface use. Actuation of the buttons on the device require only the natural flexing or squeezing motion of the fingers and thumb. The device can be used in either mode without mechanical or electrical change.