Growing community of inventors

Saratoga, CA, United States of America

David J Ladd

Average Co-Inventor Count = 1.74

ph-index = 7

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.

Forward Citations = 351

David J LaddGregory Eugene Pounds (3 patents)David J LaddTim J Kusumi (3 patents)David J LaddRobert R Shepard (2 patents)David J LaddRobert H Sinn (2 patents)David J LaddPeter A Bonee (2 patents)David J LaddHenry C Hyde-Thomson (1 patent)David J LaddArnold Chencinski (1 patent)David J LaddEric K Wood (1 patent)David J LaddReid Thomas (1 patent)David J LaddMichael A Liberty (1 patent)David J LaddDavid J Ladd (9 patents)Gregory Eugene PoundsGregory Eugene Pounds (16 patents)Tim J KusumiTim J Kusumi (3 patents)Robert R ShepardRobert R Shepard (3 patents)Robert H SinnRobert H Sinn (2 patents)Peter A BoneePeter A Bonee (2 patents)Henry C Hyde-ThomsonHenry C Hyde-Thomson (2 patents)Arnold ChencinskiArnold Chencinski (1 patent)Eric K WoodEric K Wood (1 patent)Reid ThomasReid Thomas (1 patent)Michael A LibertyMichael A Liberty (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Vmx, Incorporated (3 from 15 patents)

2. Other (2 from 832,966 patents)

3. Vmx/opcom (2 from 2 patents)

4. Lucent Technologies Inc. (1 from 9,364 patents)

5. Octel Communications Corporation (1 from 27 patents)


9 patents:

1. 7774962 - Removable and reusable tags for identifying bottles, cans, and the like

2. 6685069 - Shoulder protection device for use when carrying a ladder

3. 6097791 - Voice-messaging system with non-user outcalling and auto-provisioning

4. 5991370 - Voice messaging system and method providing message delivery verification

5. 5517556 - Call processing system with facsimile processing

6. 5355406 - Integrated application controlled call processing and messaging system

7. 5325422 - PBX telephone call control system

8. 5117451 - Interface to and operation of a voice messaging system

9. 4926462 - Interface to and operation of a voice messaging system

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as of
1/18/2026
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