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Langhorne, PA, United States of America

David L Siegfried

Average Co-Inventor Count = 4.33

ph-index = 3

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 = 50

David L SiegfriedShane Hsieh (4 patents)David L SiegfriedWojciech A Wilczak (4 patents)David L SiegfriedRobert J Sheerin (3 patents)David L SiegfriedNavin Tilara (3 patents)David L SiegfriedDieter Mohr (2 patents)David L SiegfriedStephan J Platzer (2 patents)David L SiegfriedAndreas Elsaesser (2 patents)David L SiegfriedGuenter Hultzsch (2 patents)David L SiegfriedMartin Benzing (2 patents)David L SiegfriedJuergen Mertes (2 patents)David L SiegfriedIne Gramm (2 patents)David L SiegfriedRusty Koenigkramer (2 patents)David L SiegfriedManfred Michel (2 patents)David L SiegfriedWilbur Mardis (2 patents)David L SiegfriedRichard Shadrach (2 patents)David L SiegfriedJohn Ritzke (2 patents)David L SiegfriedAlbert C Chen (1 patent)David L SiegfriedHrire Gharapetian (1 patent)David L SiegfriedDonald S Mueller (1 patent)David L SiegfriedShuchen Liu (1 patent)David L SiegfriedRichard Zagroba (1 patent)David L SiegfriedRhonda L Stark (1 patent)David L SiegfriedJohn J Gigantino (1 patent)David L SiegfriedDavid L Siegfried (11 patents)Shane HsiehShane Hsieh (20 patents)Wojciech A WilczakWojciech A Wilczak (19 patents)Robert J SheerinRobert J Sheerin (33 patents)Navin TilaraNavin Tilara (12 patents)Dieter MohrDieter Mohr (61 patents)Stephan J PlatzerStephan J Platzer (49 patents)Andreas ElsaesserAndreas Elsaesser (32 patents)Guenter HultzschGuenter Hultzsch (14 patents)Martin BenzingMartin Benzing (10 patents)Juergen MertesJuergen Mertes (6 patents)Ine GrammIne Gramm (5 patents)Rusty KoenigkramerRusty Koenigkramer (4 patents)Manfred MichelManfred Michel (4 patents)Wilbur MardisWilbur Mardis (3 patents)Richard ShadrachRichard Shadrach (2 patents)John RitzkeJohn Ritzke (2 patents)Albert C ChenAlbert C Chen (16 patents)Hrire GharapetianHrire Gharapetian (9 patents)Donald S MuellerDonald S Mueller (3 patents)Shuchen LiuShuchen Liu (2 patents)Richard ZagrobaRichard Zagroba (1 patent)Rhonda L StarkRhonda L Stark (1 patent)John J GigantinoJohn J Gigantino (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Columbia Insurance Company (3 from 1,004 patents)

2. Hoechst Aktiengesellschaft (2 from 6,662 patents)

3. Bayer Corporation (2 from 1,008 patents)

4. Other (1 from 832,680 patents)

5. Hoechst Celanese Corporation (1 from 1,194 patents)

6. Agfa Corporation (1 from 155 patents)

7. Johnson & Johnson Consumer Products, Inc. (1 from 151 patents)


11 patents:

1. 11045565 - Pasteurizing paints and method for pasteurizing paints

2. 10639386 - Pasteurizing paints and method for pasteurizing paints

3. 7754801 - Translucent coating compositions providing improved UV degradation resistance

4. 6143461 - Process for obtaining a color image with improved resolution

5. 5840464 - Single coating transfer color proofing system

6. 5792588 - Negative working, peel developable, single sheet color proofing system

7. 5738970 - Negative working, peel developable, single sheet color proofing system

8. 5545506 - Method of producing an image using a negative working, peel developable,

9. 5436106 - Process for the production of a color test image using quinone diazide

10. 5348833 - Colored positive-working quinone diazide photosensitive recording

11. 4792577 - Stain-resistant no-mix orthodontic adhesive

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