WB

William A. Bergstresser

Eastman Kodak: 7 patents #1,571 of 8,114Top 20%
SW Sterling Winthrop: 5 patents #39 of 215Top 20%
Abbott: 1 patents #3,441 of 5,431Top 65%
SW Sanofi Winthrop: 1 patents #9 of 33Top 30%
📍 Penn Yan, NY: #3 of 31 inventorsTop 10%
🗺 New York: #10,487 of 115,490 inventorsTop 10%
Overall (All Time): #357,497 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
5984538 Hand-held film developing device and kit for roomlight processing of black-and-white photographic elements David G. Sherburne, Ronald J. Perry, Jeffrey C. Robertson 1999-11-16
5730729 Self-tapping plunger rod for cartridge needle unit Mark Stiehl 1998-03-24
5721960 Apparatus and method for loading and partially unloading a camera with a discrete film strip Dennis R. Zander, Paul Teremy, Eric P. Hochreiter, Scott H. Schwallie 1998-02-24
5700246 Holder for cartridge-needle unit Mark Stiehl, John J. Niedospial, Jr. 1997-12-23
5689745 Apparatus and method for loading and unloading a camera with a discrete film strip Dennis R. Zander, Bradley S. Bush, Eric P. Hochreiter, Jeffrey C. Robertson, Paul Teremy 1997-11-18
5655155 Apparatus and method for opening and closing a photographic camera Eric P. Hochreiter, Paul Teremy, Dennis R. Zander 1997-08-05
5649258 Apparatus for actuating and testing a camera Eric P. Hochreiter, Dennis R. Zander, Bradley S. Bush 1997-07-15
5573514 Holder for cartridge-needle unit Mark Stiehl, John J. Niedospial, Jr. 1996-11-12
D368855 Three-chambered bottle for chemicals for a photographic film processor Richard P. Triassi, David Doucette, Linn C. Hoover, Ronald R. Vacek 1996-04-16
5496286 Hypodermic syringe holder with disposable body Mark Stiehl, George E. Diaz 1996-03-05
D366698 Combined pre-filled cartridge-needle unit and holder Mark Stiehl, John J. Niedospial, Jr., Raymond P. Chapman, Berle A. Dale, Richard J. Felts +1 more 1996-01-30
D365983 Two-chambered bottle for chemicals for photographic film processor Richard P. Triassi, David Doucette, Linn C. Hoover, Ronald R. Vacek 1996-01-09
5447500 Collar and cartridge-needle unit assembly Mark Stiehl, John J. Niedospial, Jr. 1995-09-05
5350367 Snap together hypodermic syringe holder Mark Stiehl, Eugene Sisto, Ronald R. Vacek 1994-09-27