Growing community of inventors

Jersey Shore, PA, United States of America

Robert C Berfield

Average Co-Inventor Count = 1.42

ph-index = 23

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 = 2,193

Robert C BerfieldRonald F Meland (26 patents)Robert C BerfieldCraig A Seasholtz (23 patents)Robert C BerfieldRobert L Crevling, Jr (11 patents)Robert C BerfieldRichard M Fegan (9 patents)Robert C BerfieldRudolph W Wacek (6 patents)Robert C BerfieldJonathan Miller (5 patents)Robert C BerfieldRandy L Buss (5 patents)Robert C BerfieldRonald Griffin (4 patents)Robert C BerfieldRobert L Crevling (2 patents)Robert C BerfieldR Lent Crevling, Jr (2 patents)Robert C BerfieldLouis M Bassler (2 patents)Robert C BerfieldKenneth R Hiester (2 patents)Robert C BerfieldAlan D Kaufman (2 patents)Robert C BerfieldLonnie B Lawson, Jr (2 patents)Robert C BerfieldJ Scott Kriner (2 patents)Robert C BerfieldJohn Griffin (1 patent)Robert C BerfieldKevin D Fry (1 patent)Robert C BerfieldMelvin E Wolfe, Jr (1 patent)Robert C BerfieldMark E Baer (1 patent)Robert C BerfieldDavid M Martinez (1 patent)Robert C BerfieldLi H Liu (1 patent)Robert C BerfieldGary C Berray (1 patent)Robert C BerfieldClive R Paige (1 patent)Robert C BerfieldDonald G Rightnour (1 patent)Robert C BerfieldThomas S Davy (1 patent)Robert C BerfieldCharles M Storrs (1 patent)Robert C BerfieldRonald E Meland (1 patent)Robert C BerfieldMarcus Rhone (1 patent)Robert C BerfieldJohn S Kriner (1 patent)Robert C BerfieldRobert L Crevling (1 patent)Robert C BerfieldDavid Martinez (1 patent)Robert C BerfieldRobert C Berfield (146 patents)Ronald F MelandRonald F Meland (27 patents)Craig A SeasholtzCraig A Seasholtz (68 patents)Robert L Crevling, JrRobert L Crevling, Jr (108 patents)Richard M FeganRichard M Fegan (10 patents)Rudolph W WacekRudolph W Wacek (8 patents)Jonathan MillerJonathan Miller (37 patents)Randy L BussRandy L Buss (15 patents)Ronald GriffinRonald Griffin (9 patents)Robert L CrevlingRobert L Crevling (14 patents)R Lent Crevling, JrR Lent Crevling, Jr (6 patents)Louis M BasslerLouis M Bassler (6 patents)Kenneth R HiesterKenneth R Hiester (4 patents)Alan D KaufmanAlan D Kaufman (3 patents)Lonnie B Lawson, JrLonnie B Lawson, Jr (2 patents)J Scott KrinerJ Scott Kriner (2 patents)John GriffinJohn Griffin (156 patents)Kevin D FryKevin D Fry (43 patents)Melvin E Wolfe, JrMelvin E Wolfe, Jr (35 patents)Mark E BaerMark E Baer (29 patents)David M MartinezDavid M Martinez (27 patents)Li H LiuLi H Liu (24 patents)Gary C BerrayGary C Berray (6 patents)Clive R PaigeClive R Paige (5 patents)Donald G RightnourDonald G Rightnour (1 patent)Thomas S DavyThomas S Davy (1 patent)Charles M StorrsCharles M Storrs (1 patent)Ronald E MelandRonald E Meland (1 patent)Marcus RhoneMarcus Rhone (1 patent)John S KrinerJohn S Kriner (1 patent)Robert L CrevlingRobert L Crevling (2 patents)David MartinezDavid Martinez (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shop Vac Corporation (137 from 411 patents)

2. Other (7 from 832,843 patents)

3. Mcculloch Corporation (1 from 66 patents)

4. Robert C. Berfield (0 patent)

5. Robert L. Crevling (0 patent)

6. Randy L. Buss (0 patent)

7. Craig A. Seasholtz (0 patent)

8. Li H. Liu (0 patent)

9. Ronald Griffin (0 patent)

10. David Martinez (0 patent)


146 patents:

1. 7513464 - Hose holder

2. 7395601 - Rotary flail feeding device

3. 7191989 - Hose holder

4. 7100776 - Wall mounted tool holder

5. D525114 - Tool holder

6. 6530116 - Vacuum cleaner with muffled detachable blower exhaust

7. 6508618 - Pump having dynamic shaft seal

8. 6499182 - Convertible blower port for vacuum cleaner

9. 6494544 - Axle and wheel mounting system for a wet/dry vacuum cleaner

10. 6485259 - Vaneless impeller housing for a vacuum cleaner

11. 6481107 - Rotary flail feeding device and method

12. 6481049 - Self-evacuating vacuum cleaner

13. 6478342 - Swivel coupling for a hose

14. 6451078 - Fitting for vacuum bags

15. 6440227 - Nozzle and method providing increased liquid lift height for a wet/dry vacuum cleaner

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as of
12/28/2025
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